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π Digits

Calculates PI (π) to a set number of decimal places using the Gauss-Legendre Algorithm.

1 Die Roll

Calculates the probability for the following events in the roll of one fair dice (1 dice):

* Probability of any total from (1-6)

* Probability of the total being less than, less than or equal to, greater than, or greater than or equal to (1-6)

* The total being even

* The total being odd

* The total being a prime number

* The total being a non-prime number

* Rolling a list of numbers i.e. (2,5,6)

* Simulate (n) Monte Carlo die simulations.

* Probability of any total from (1-6)

* Probability of the total being less than, less than or equal to, greater than, or greater than or equal to (1-6)

* The total being even

* The total being odd

* The total being a prime number

* The total being a non-prime number

* Rolling a list of numbers i.e. (2,5,6)

* Simulate (n) Monte Carlo die simulations.

1089 Number Trick

Demonstrates the 1089 number trick for a 3 digit number that you enter

12 Hour Clock Conversion

This calculator performs the following two conversions:

1) Takes a time in 24 hour clock (military time) format and converts it to a 12 hour clock format (AM/PM)

2) Takes a time in 12 hour clock format and converts it to military time (12 hour clock format)

1) Takes a time in 24 hour clock (military time) format and converts it to a 12 hour clock format (AM/PM)

2) Takes a time in 12 hour clock format and converts it to military time (12 hour clock format)

2 Asset Portfolio

Given a portfolio with 2 assets, this determines the expected return (mean), variance, and volatility (standard deviation) of the portfolio.

2 dice roll

Calculates the probability for the following events in a pair of fair dice rolls:

* Probability of any sum from (2-12)

* Probability of the sum being less than, less than or equal to, greater than, or greater than or equal to (2-12)

* The sum being even

* The sum being odd

* The sum being a prime number

* The sum being a non-prime number

* Rolling a list of numbers i.e. (2,5,6,12)

* Simulate (n) Monte Carlo two die simulations.

* Probability of any sum from (2-12)

* Probability of the sum being less than, less than or equal to, greater than, or greater than or equal to (2-12)

* The sum being even

* The sum being odd

* The sum being a prime number

* The sum being a non-prime number

* Rolling a list of numbers i.e. (2,5,6,12)

* Simulate (n) Monte Carlo two die simulations.

2 Lines Intersection

Enter any 2 line equations, and the calculator will determine the following:

* Are the lines parallel?

* Are the lines perpendicular

* Do the lines intersect at some point, and if so, which point?

* Is the system of equations dependent, independent, or inconsistent

* Are the lines parallel?

* Are the lines perpendicular

* Do the lines intersect at some point, and if so, which point?

* Is the system of equations dependent, independent, or inconsistent

2 number Word Problems

This calculator handles word problems in the format below:

* Two numbers have a sum of 70 and a product of 1189 What are the numbers?

* Two numbers have a sum of 70. Their difference 32

* Two numbers have a sum of 70 and a product of 1189 What are the numbers?

* Two numbers have a sum of 70. Their difference 32

3 unknowns using Cramers Rule

Solves for 3 unknowns with equations in the form ax + by + cz = d using Cramers Method.

3-dimensional points

Calculates distance between two 3-dimensional points

(x_{1}, y_{1}, z_{1}) and (x_{2}, y_{2}, z_{2}) as well as the parametric equations and symmetric equations

(x

4 unknowns using Cramers Rule

Solves for 4 unknowns with equations in the form aw + bx + cy + dz = e using Cramers Method.

5 Card Poker Hand

Calculates and details probabilities of the 10 different types of poker hands given 1 player and 1 deck of cards.

Acceleration

Solves for any of the 4 items in the acceleration equation including initial velocity, velocity, and time.

Accounting Rate of Return

Given an initial investment and a set of returns, this calculates the Accounting Rate of Return

Accuracy and Precision

Given an integer or decimal, this determines the precision and accuracy (scale)

Addition and Multiplication Tables (Times Tables)

Shows the color coded addition or multiplication table entries and answer for any 2 numbers 1-15.

Addition Equality Property

Demonstrates the Addition Equality Property

Addition Property Of Inequality

Demonstrates the Addition Property Of Inequality

Additive Identity Property

Displays the line by line proof for the additive identity property

Additive Inverse Property

Demonstrates the Additive Inverse property using a number.

Affine Cipher

Builds the Affine Cipher Translation Algorithm from a string given an a and b value

Age Difference

Determines the ages for an age difference word problem.

Algebra Master (Polynomials)

Given 2 polynomials this does the following:

1) Polynomial Addition

2) Polynomial Subtraction

Also generates binomial theorem expansions and polynomial expansions with or without an outside constant multiplier.

1) Polynomial Addition

2) Polynomial Subtraction

Also generates binomial theorem expansions and polynomial expansions with or without an outside constant multiplier.

Algebraic Expressions

This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them(increased,product,decreased,divided,times)

Algebraic Substitutions

Given an algebraic statement with variables [a-z], this calculator takes a set of given substitution values, i.e., x=2,y=3,z=4, and evaluates your statement using the substitution values.

Angle Ratio for a Triangle

Given an angle ratio for a triangle of a:b:c, this determines the angle measurements of the triangle.

Angular Momentum

Solves for any of the 4 variables in the angular momentum equation, L, V, M, and R

Annulus

Calculates the area of an annulus and the equation of the annulus using the radius of the large and small concentric circles.

Antilog

Calculates the antilog of a number using a base.

Arc Length and Area of a Sector of a Circle

Calculates the arc length of a circle and the area of the sector of a circle

Area Code Finder

Given a 3 digit area code, this will show what state, time zone, and current time the area code refers to.

Area Conversions

This calculator converts between the following area measurements:

acre

hectare

square inch

square foot

square yard

square mile

square millimeter

square meter

square kilometer

acre

hectare

square inch

square foot

square yard

square mile

square millimeter

square meter

square kilometer

Arithmetic and Geometric and Harmonic Sequences

This will take an arithmetic series or geometric series or harmonic series, and an optional amount (n), and determine the following information about the sequence

1) Explicit Formula

2) The remaining terms of the sequence up to (n)

3) The sum of the first (n) terms of the sequence

1) Explicit Formula

2) The remaining terms of the sequence up to (n)

3) The sum of the first (n) terms of the sequence

Arithmetic Annuity

Calculates the Present Value, Accumulated Value (Future Value), First Payment, or Arithmetic Progression of an Increasing or Decreasing Arithmetic Annuity Immediate.

Associative Property

Demonstrates the associative property using 3 numbers.

ASVAB Exam Questions

Exam Questions from the Armed Services Vocational Aptitude Battery (ASVAB)

Babylonian Method

Determines the square root of a number using the Babylonian Method.

Bakshali Method

Calculates the square root of a positive integer using the Bakshali Method

Balance Sheet

Given various asset and liability entries, this determines various calculations that can be made from the balance sheet.

Balance with Interest

Calculates the final account balance given a beginning balance, interest rate, and interest crediting period.

Balancing Equations

Given 4 numbers, this will use the four operations: addition, subtraction, multiplication, or division to balance the equations if possible.

Basal Metabolic Rate (BMR)

Given a gender, an age, and a height/weight in inches/pounds or meters/kilograms, this will calculate the Basal Metabolic Rate (BMR)

Base Change Conversions

Converts a positive integer to Binary-Octal-Hexadecimal Notation or Binary-Octal-Hexadecimal Notation to a positive integer. Also converts any positive integer in base 10 to another positive integer base (Change Base Rule or Base Change Rule or Base Conversion)

Basic m x n Matrix Operations

Given 2 matrices |A| and |B|, this performs the following basic matrix operations

* Matrix Addition |A| + |B|

* Matrix Subtraction |A| - |B|

* Matrix Multiplication |A| x |B|

* Scalar multiplication rA where r is a constant.

* Matrix Addition |A| + |B|

* Matrix Subtraction |A| - |B|

* Matrix Multiplication |A| x |B|

* Scalar multiplication rA where r is a constant.

Basic Math Operations

Given 2 numbers, this performs the following arithmetic operations:

* Addition (Adding) (+)

* Subtraction (Subtracting) (-)

* Multiplication (Multiplying) (x)

* Long division (Dividing) with a remainder (÷)

* Long division to decimal places (÷)

* Partial Sums (Shortcut Sums)

* Short Division

* Duplication and Mediation

* Addition (Adding) (+)

* Subtraction (Subtracting) (-)

* Multiplication (Multiplying) (x)

* Long division (Dividing) with a remainder (÷)

* Long division to decimal places (÷)

* Partial Sums (Shortcut Sums)

* Short Division

* Duplication and Mediation

Basic Statistics

Given a number set, and an optional probability set, this calculates the following statistical items:

Expected Value

Mean = μ

Variance = σ^{2}

Standard Deviation = σ

Standard Error of the Mean

Skewness

Mid-Range

Average Deviation (Mean Absolute Deviation)

Median

Mode

Range

Pearsons Skewness Coefficients

Entropy

Upper Quartile (hinge) (75th Percentile)

Lower Quartile (hinge) (25th Percentile)

InnerQuartile Range

Inner Fences (Lower Inner Fence and Upper Inner Fence)

Outer Fences (Lower Outer Fence and Upper Outer Fence)

Suspect Outliers

Highly Suspect Outliers

Stem and Leaf Plot

Ranked Data Set

Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range

Root Mean Square

Weighted Average (Weighted Mean)

Frequency Distribution

Successive Ratio

Expected Value

Mean = μ

Variance = σ

Standard Deviation = σ

Standard Error of the Mean

Skewness

Mid-Range

Average Deviation (Mean Absolute Deviation)

Median

Mode

Range

Pearsons Skewness Coefficients

Entropy

Upper Quartile (hinge) (75th Percentile)

Lower Quartile (hinge) (25th Percentile)

InnerQuartile Range

Inner Fences (Lower Inner Fence and Upper Inner Fence)

Outer Fences (Lower Outer Fence and Upper Outer Fence)

Suspect Outliers

Highly Suspect Outliers

Stem and Leaf Plot

Ranked Data Set

Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range

Root Mean Square

Weighted Average (Weighted Mean)

Frequency Distribution

Successive Ratio

Bayes Rule

Calculates the conditional probabilities of (B given A) of 2 events and a conditional probability event using Bayes Rule

Bearing

Takes a bearing and lists the steps needed to get from Point A to Point B using that bearing.

Bending Beams Displacement

Calculates the displacement from the bending of beams at one end or both ends

Bernoulli Trials

Given a success probability p and a number of trials (n), this will simulate Bernoulli Trials and offer analysis using the Bernoulli Distribution. Also calculates the skewness, kurtosis, and entropy

Better Buy Comparison

Given two items with a price and quantity, this determines which is the better buy by comparing unit prices.

Bingo Card Generator

This program generates the following two types of bingo cards

1) Random Numerical bingo cards 1-75 with a FREE Space.

2) Buzzword Bingo cards which allow you to enter words of your choice to be used on the bingo card.

1) Random Numerical bingo cards 1-75 with a FREE Space.

2) Buzzword Bingo cards which allow you to enter words of your choice to be used on the bingo card.

Binomial Distribution

Calculates the probability of 3 separate events that follow a binomial distribution. It calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, standard deviation, skewness and kurtosis.

Also calculates the normal approximation to the binomial distribution with and without the continuity correction factor

Calculates moment number t using the moment generating function

Also calculates the normal approximation to the binomial distribution with and without the continuity correction factor

Calculates moment number t using the moment generating function

Binomial Multiplication (FOIL)

Multiplies out the product of 2 binomials in the form (a + b)(c + d) with 1 unknown variable.

This utilizes the First-Outside-Inside-Last (F.O.I.L.) method.

This utilizes the First-Outside-Inside-Last (F.O.I.L.) method.

Black-Scholes

Calculates the call or put option value of a stock based on inputs related to the option using Black Scholes method.

Body Mass Index (BMI)

Solves for the popular health measurement of Body Mass Index or Weight using inches and pounds input or meters and kilos input.

Also calculates the estimated surface area of the body using the Mosteller Formula

Also calculates the estimated surface area of the body using the Mosteller Formula

Bond Flat Price-Accrued Coupon-Market Price

Calculates the flat price, accrued coupon, and market price for a bond between valuation dates using the following methods:

1) Theoretical Method

2) Practical Method

3) Semi-Theoretical Method

1) Theoretical Method

2) Practical Method

3) Semi-Theoretical Method

Bond Price Formulas

Given a face value, coupon percent, yield percent, term, and redemption value, this calculates the price of a bond using the four price formulas for bonds

1) Basic

2) Premium/Discount

3) Base

4) Makeham

1) Basic

2) Premium/Discount

3) Base

4) Makeham

Bond Yield Rates

Calculates the yield rate of bonds using the Yield Approximation Method or the Bond Salesman Method.

Boolean Algebra Multiplication

Determines the product of two expressions using boolean algebra.

Boyles Law

This will solve for any of the 4 items in Boyles Law

P_{1} x V_{1} = P_{2} x V_{2}

P

Braille Translator

Given a phrase with letters, numbers, and most punctuation symbols, the calculator will perform the following duties:

1) Translate that phrase to Braille

2) Calculate the number of dots in the message

3) Calculate the number of empty spaces in the message

1) Translate that phrase to Braille

2) Calculate the number of dots in the message

3) Calculate the number of empty spaces in the message

Break Even

Given a fixed cost, variable cost, and revenue function or value, this calculates the break-even point

Bretschneiders Formula

Calculates the area of a quadrilateral using Bretschneiders Formula

Budget Line Equation

Solves for any one of the 5 items in the standard budget line equation:

Income (I)

Quantity of x = Q_{x}

Quantity of y = Q_{y}

Price of x = P_{x}

Price of y = P_{y}

Income (I)

Quantity of x = Q

Quantity of y = Q

Price of x = P

Price of y = P

Calls-Puts-Option Δ

Calculates the call price, put price, and option Δ based on an option under the risk neutral scenario with a 1 year term.

Cartesian Product

Given a Set A and Set B, this calculates the Cartesian Product A × B

Ceiling

Calculates the ceiling of a number

Centripetal Acceleration

Solves for any of the 3 items in the centripetal acceleration formula, centripetal acceleration, rotational speed, and radius.

Cevian Triangle Relations

Given a triangle with a cevian, this will solve for the cevian or segments or sides based on inputs

Chain Discounts and Net Cost Price and Net Cost Equivalent

Given a chain discount and an original price, this calculates the total discount and net cost price.

Change Counting

This shows you how to make change using the least amount of bills/coins by taking a bill amount and a cash tendered amount from a customer and figuring out the fastest way to make change. Maximum denomination is $100

Charles Law

This will solve for any of the 4 items in Charles Law assuming constant pressure

V1 ÷ T1 = V2 ÷ T2

V1 ÷ T1 = V2 ÷ T2

Chebyshevs Theorem

Using Chebyshevs Theorem, this calculates the following:

Probability that random variable X is within k standard deviations of the mean.

How many k standard deviations within the mean given a P(X) value.

Probability that random variable X is within k standard deviations of the mean.

How many k standard deviations within the mean given a P(X) value.

Chi-Square Critical Values

Given a probability, this calculates the critical value for the right-tailed and left-tailed tests for the Chi-Square Distribution. CHIINV from Excel is used as well.

Chinese Remainder Theorem

Given a set of modulo equations in the form:

x ≡ a mod b

x ≡ c mod d

x ≡ e mod f

the calculator will use the Chinese Remainder Theorem to find the lowest possible solution for x in each modulus equation.

Given that the n_{i} portions are not pairwise coprime and you entered two modulo equations, then the calculator will attempt to solve using the Method of Successive Subsitution

x ≡ a mod b

x ≡ c mod d

x ≡ e mod f

the calculator will use the Chinese Remainder Theorem to find the lowest possible solution for x in each modulus equation.

Given that the n

Cholesterol Equation

Solves for each of the 4 following cholesterol equation items:

1) Total Cholesterol

2) High Density Lipoproteins (HDL)*Good Cholesterol*

3) Low Density Lipoproteins (LDL)*Bad Cholesterol*

4) Triglycerides

1) Total Cholesterol

2) High Density Lipoproteins (HDL)

3) Low Density Lipoproteins (LDL)

4) Triglycerides

Chord

Solves for any of the 3 items in the Chord of a Circle equation, Chord Length (c), Radius (r), and center to chord midpoint (t).

Circle Equation

This calculates the standard equation of a circle and general equation of a circle from the following given items:

* A center (h,k) and a radius r

* A diameter A(a_{1},a_{2}) and B(b_{1},b_{2})

This also allows you to enter a standard or general form equation so that the center (h,k) and radius r can be determined.

* A center (h,k) and a radius r

* A diameter A(a

This also allows you to enter a standard or general form equation so that the center (h,k) and radius r can be determined.

Classify Fraction

Determines the if a fraction is proper or improper.

Clock Angle

Calculate the angle on a clock between the hour and minute hands or how many times on the clock form an angle of (x°) between the minute and hour hand (backwards and forwards)

Clock Gain and Loss

This calculates the gain/loss in seconds of a clock over a certain period of time.

Clock Hands Meet

Calculates the first time on a clock when the hands will meet or touch again.

Closest Fraction

Determines the closest fraction in a list to a target fraction

Cofunction Calculator

Calculates the cofunction of the 6 trig functions:
* sin

* cos

* tan

* csc

* sec

* cot

* cos

* tan

* csc

* sec

* cot

Coin Amount to Denomination

Takes a money value and using the highest possible bills/coins, constructs the amount using bills and coins.

Coin Combinations

Given a selection of coins and an amount, this determines the least amount of coins needed to reach that total.

Coin Denomination Conversions

This caculator converts between the following coin denominations:

* Penny

* Nickel

* Dime

* Quarter

* Half-Dollar

* Dollar

* Penny

* Nickel

* Dime

* Quarter

* Half-Dollar

* Dollar

Coin Toss Probability

This calculator determines the following coin toss probability scenarios

* Coin Toss Sequence such as HTHHT

* Probability of x heads and y tails

* Probability of at least x heads in y coin tosses

* Probability of at least x tails in y coin tosses

* Probability of no more than x heads in y coin tosses

* Probability of no more than x tails in y coin tosses

* (n) Coin Tosses with a list of scenario results displayed

* Monte Carlo coin toss simulation

* Coin Toss Sequence such as HTHHT

* Probability of x heads and y tails

* Probability of at least x heads in y coin tosses

* Probability of at least x tails in y coin tosses

* Probability of no more than x heads in y coin tosses

* Probability of no more than x tails in y coin tosses

* (n) Coin Tosses with a list of scenario results displayed

* Monte Carlo coin toss simulation

Coin Values

This calculates the total value of a given amount of:

* Pennies

* Nickels

* Dimes

* Quarters

* Half-Dollars

* Dollars

* Pennies

* Nickels

* Dimes

* Quarters

* Half-Dollars

* Dollars

Collatz Conjecture

Takes any natural number using the Collatz Conjecture and reduces it down to 1.

Collinear Points that form Unique Lines

Solves the word problem, how many lines can be formed from (n) points no 3 of which are collinear.

Combined Gas Law

This will solve for any of the 6 items in the Combined Gas Law using pressure, volume (Capacity), and temperature.

(P_{1} x V_{1})/T1 = (P_{2} x V_{2})/T2

(P

Combined Ratio

Given a ratio a:b and a ratio b:c, this determines the combined ratio a:c

Commutative Property

Demonstrates the commutative property of addition and the commutative property of multiplication using 3 numbers.

Compare Raises

Given two people with a salary and annual raise amount, this determines how long it takes for the person with the lower salary to catch the person with the higher salary.

Comparison of Numbers

Compares two numbers and checks to see if they are equal to one another, if the first number is greater than the second number, or the first number is less than the second number. Minimum and maximum.

Complementary and Supplementary Angles

This calculator determines the complementary and supplementary angle of a given angle that you enter OR it checks to see if two angles that you enter are complementary or supplementary.

Complex Number Operations

Given two numbers in complex number notation, this calculator:

1) Adds (complex number addition), Subtracts (complex number subtraction), Multiplies (complex number multiplication), or Divides (complex number division) any 2 complex numbers in the form a + bi and c + di where i = √-1.

2) Determines the Square Root of a complex number denoted as √a + bi

3) Absolute Value of a Complex Number |a + bi|

4) Conjugate of a complex number a + bi

1) Adds (complex number addition), Subtracts (complex number subtraction), Multiplies (complex number multiplication), or Divides (complex number division) any 2 complex numbers in the form a + bi and c + di where i = √-1.

2) Determines the Square Root of a complex number denoted as √a + bi

3) Absolute Value of a Complex Number |a + bi|

4) Conjugate of a complex number a + bi

Compound Interest Accumulated Balance

Given an interest rate per annum compounded annually (i), semi-annually, quarterly, monthly, semi-monthly, weekly, and daily, this calculates the accumulated balance after (n) periods

Compound Interest and Annuity Table

Given an interest rate (i), number of periods to display (n), and number of digits to round (r), this calculator shows the values for the following 4 compound interest annuity functions from time 1 to (n) rounded to (r) digits:

v^{n}

d

(1 + i)^{n}

a_{n|}

s_{n|}

ä_{n|i}

s_{n|i}

Force of Interest δ^{n}

v

d

(1 + i)

a

s

ä

s

Force of Interest δ

Computer Storage Conversions

This calculator converts between the following computer storage measurements:

* byte

* kilobyte

* megabyte

* gigabyte

* terabyte

* petabyte

* exabyte

* byte

* kilobyte

* megabyte

* gigabyte

* terabyte

* petabyte

* exabyte

Confidence Interval for the Mean

Calculates a (90% - 99%) estimation of confidence interval for the mean given a small sample size using the student-t method with (n - 1) degrees of freedom or a large sample size using the normal distribution Z-score (z value) method including Standard Error of the Mean

Confidence Interval for Variance and Standard Deviation

Calculates a (95% - 99%) estimation of confidence interval for the standard deviation or variance using the χ^{2} method with (n - 1) degrees of freedom.

Confidence Interval of a Proportion

Given N, n, and a confidence percentage, this will calculate the estimation of confidence interval for the population proportion π including the margin of error

Confidence Interval/Hypothesis Testing for the Difference of Means

Given two large or two small distriutions, this will determine a (90-99)% estimation of confidence interval for the difference of means for small or large sample populations.

Also performs hypothesis testing including standard error calculation.

Also performs hypothesis testing including standard error calculation.

Congruence Modulo n

Given a possible congruence relation a ≡ b (mod n), this determines if the relation holds true (b is congruent to c modulo n).

Conjugates

Simplifies a fraction with conjugates in the denominator

Consecutive Integer Word Problems

Calculates the word problem for what two consecutive integers, if summed up or multiplied together, equal a number entered.

Container Arrangements

Given a set of items inside a container, this calculates the probability that you draw certain items in the following fashion:

Draw__all__ the items

Draw__any of__ the items

How many ways can you choose m items of a, n items of b, o items of c, etc.

Draw

Draw

How many ways can you choose m items of a, n items of b, o items of c, etc.

Continous Annuity

Determines the Present Value and Accumulated Value of a Continuous Annuity

Continued Fraction

Shows the continued fraction for a fraction

Cost of Carry

Calculates the cost of carry expressed as the forward price for a position

Cost Recovery Method

Given a sales price, cost, and set of payments, this determines the gross profit per year based on the cost recovery method.

Counting

Counts up from a number to another number using a factor

Counts down from one number to another number using a factor. Also known as skip counting.

Counts down from one number to another number using a factor. Also known as skip counting.

Coupon Comparison

Given a cost of goods, a dollar off coupon, and a percentage off coupon, this calculator will compare the two deals and determine which one is of more value. If the dollar coupon wins, the calculator will project the break even price where the dollar coupon would surpass the percentage coupon

Covariance and Correlation coefficient (r) and Least Squares Method and Exponential Fit

Given two distributions X and Y, this calculates the following:

* Covariance of X and Y denoted Cov(X,Y)

* The correlation coefficient r.

* Using the least squares method, this shows the least squares regression line (Linear Fit) and Confidence Intervals of α and Β (90% - 99%)

Exponential Fit

* Coefficient of Determination r squared r^{2}

* Spearmans rank correlation coefficient

* Wilcoxon Signed Rank test

* Covariance of X and Y denoted Cov(X,Y)

* The correlation coefficient r.

* Using the least squares method, this shows the least squares regression line (Linear Fit) and Confidence Intervals of α and Β (90% - 99%)

Exponential Fit

* Coefficient of Determination r squared r

* Spearmans rank correlation coefficient

* Wilcoxon Signed Rank test

Cox-Ross-Rubenstein Pricing

Using the Cox-Ross-Rubenstein method, this calculates the call price and put price of an option.

Cribbage

Calculates the score you would get after the deck card is flipped in a hand of cribbage.

Critical Values for F-test

Calculate a critical value for the F-Test statistic based on DF1, DF2, and α

Critical Z-values

Given a probability from a normal distribution, this will generate the z-score critical value. Uses the NORMSINV Excel function.

Cross Partitions

Given a set of partitions, this determines the cross partitions.

Cross Product A × B

Given two vectors A and B in R^{3}, this calculates the cross product A × B as well as determine if the two vectors are parallel

Cube

Solves for Volume (Capacity), Lateral Area,Surface Area, and the value of a side for a cube.

Cubic Equation

Solves for cubic equations in the form ax^{3} + bx^{2} + cx + d = 0 using the following methods:

1) Solve the long way for all 3 roots and the discriminant Δ

2) Rational Root Theorem (Rational Zero Theorem) to solve for real roots followed by the synthetic div/quadratic method for the other imaginary roots if applicable.

1) Solve the long way for all 3 roots and the discriminant Δ

2) Rational Root Theorem (Rational Zero Theorem) to solve for real roots followed by the synthetic div/quadratic method for the other imaginary roots if applicable.

Cuboid

Calculates the volume, surface area, diagonals, and space diagonal for a cuboid

d-i-v interest rate relationships

Calculates d,i, or v based on 1 of the items entered.

Date and Time Difference

Calculates the difference between two dates using the following methods

1) Difference in dates using year/month/day/hour/minute/second as the primary unit of time

2) Difference in dates in the form of years remaining, months remaining, days remaining, hours remaining, minutes remaining, seconds remaining.

1) Difference in dates using year/month/day/hour/minute/second as the primary unit of time

2) Difference in dates in the form of years remaining, months remaining, days remaining, hours remaining, minutes remaining, seconds remaining.

Date Information

This calculator takes a date in mm/dd/yyyy format, and gives the following information about it:

* Weekday

* Day number in the year

* Week number in the year

* Number of days in the month containing that date

* Leap Year (Yes or No)

* Zodiac Sign

* Julian Date

* Weekday

* Day number in the year

* Week number in the year

* Number of days in the month containing that date

* Leap Year (Yes or No)

* Zodiac Sign

* Julian Date

Decagon

Solves for the side, perimeter, and area of a decagon.

Declining Balance Depreciation

Solves for Depreciation Charge, Asset Value, and Book Value using the Declining Balance Method

Demoivres Theorem

Using Demoivres Theorem, this calculator performs the following:

1) Evaluates (acis(θ))^{n}

2) Converts a + bi into Polar form

3) Converts Polar form to Rectangular (Standard) Form

1) Evaluates (acis(θ))

2) Converts a + bi into Polar form

3) Converts Polar form to Rectangular (Standard) Form

DeMorgans Laws

Demonstrates DeMorgans Laws including the proof

Density

Solves for any of the 3 items in the Density Formula, Density (D), Mass (M), and Volume (V) (Capacity), with 2 given items.

Derangements - Subfactorials

Calculates the number of derangements/subfactorial !n.

Dewey Decimal System Classification

Given a 3 digit code, this will determine the class, division, and section of the library book using the Dewey Decimal System.

Difference of Proportions Test

Calculates a test statistic and conclusion for a hypothesis for the difference of proportions

Difference of Two Squares

Factors a difference of squares binomial in the form a^{2} - b^{2} or multiplies 2 binomials through in the form (ax + by)(ax - by).

Digraph Items

Given a digraph, this determines the leader, and symmetric matrix.

Diophantine Equations

Solves for ax + by = c using integer solutions if they exist

Direct Current (Electrical Engineering) Ohms Law

Enter two of the following items from the DIRECT CURRENT(DC) electrical engineering set of variables, and this will solve for the remaining two:

* I = current(amps.)

* V = Electricity potential of voltage(volts)

* R = resistance(ohms)

* P = power(watts)

* I = current(amps.)

* V = Electricity potential of voltage(volts)

* R = resistance(ohms)

* P = power(watts)

Distance Catch Up

Calculates the amount of time that it takes for a person traveling at one speed to catch a person traveling at another speed when one person leaves at a later time.

Distance Rate and Time

Solves for distance, rate, or time in the equation d=rt based on 2 of the 3 variables being known.

Distributive Property

Demonstrates the distributive property using 3 numbers.

Dividend Discount Model

This calculator determines the present value of dividends using the Dividend Discount Model.

Divisibility

Shows the divisibility of a number by seeing if it is divisible by (2,3,4,5,6,7,8,9,10,11)

Division Equality Property Calculator

Demonstrates the Division Equality Property Calculator

Division Property Of Inequality

Demonstrates the Division Property Of Inequality

Dollar Weighted Interest Method

Solves for Interest Rate, Starting Asset Value, Ending Asset Value, and Expenses using the Dollar Weighted Method.

Double Declining Balance Depreciation

Calculates Depreciation and Book Value using the Double Declining Balance Depreciation Method.

DoubleClick Search Fundamentals

Exam answers and study guide for the Google DoubleClick Search Fundamentals exam

Effective Annual Yield Rate

Figures out the effective annual yield rate of interest entered by compounding daily, weekly, semi-monthly, monthly, quarterly, semi-annually, and continuously.

Elapsed Time

This determines the elapsed time between two clock readings.

Ellipses

Given an ellipse equation, this calculates the x and y intercept, the foci points, and the length of the major and minor axes as well as the eccentricity.

Equation and Inequalities

Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences

Equation of a Plane

Given three 3-dimensional points, this calculates the equation of a plane that contains those points.

Equation of Exchange

Solves for any of the 4 variables in the Equation of Exchange: money, velocity, price, quantity

Equilateral Triangle

Given a side (a), this calculates the following items of the equilateral triangle:

* Perimeter (P)

* Semi-Perimeter (s)

* Area (A)

* altitudes (h_{a},h_{b},h_{c})

* medians (m_{a},m_{b},m_{c})

* angle bisectors (t_{a},t_{b},t_{c})

* Circumscribed Circle Radius (R)

* Inscribed Circle Radius (r)

* Perimeter (P)

* Semi-Perimeter (s)

* Area (A)

* altitudes (h

* medians (m

* angle bisectors (t

* Circumscribed Circle Radius (R)

* Inscribed Circle Radius (r)

Equivalent Annual Cost (EAC)

Given 2 Items/machines with an Investment Cost, expected lifetime, and maintenance cost, this will calculate the EAC for each Item/machine as well as draw a conclusion on which project to invest in.

Estimate Sums

Estimates the sum of 2 numbers.

Euclids Algorithm and Euclids Extended Algorithm

Given 2 numbers a and b, this calculates the following

1) The Greatest Common Divisor (GCD) using Euclids Algorithm

2) x and y in Bézouts Identity ax + by = d using Euclids Extended Algorithm

1) The Greatest Common Divisor (GCD) using Euclids Algorithm

2) x and y in Bézouts Identity ax + by = d using Euclids Extended Algorithm

Eulers Formula for Planar Geometry

This calculator solves for any one of the 3 following items using Eulers Formula for planar geometry:

* Vertices (v)

* Faces (f)

* Edges (e)

* Vertices (v)

* Faces (f)

* Edges (e)

Excel Formula Tutorial

This is a downloadable interactive excel file tutorial showing you functions in Excel with examples.

It allows you to change input in blue, and the tutorial notes will dynamically update so that you can learn fast.

Also contains an instant search box that will return excel function information immediately as you type

It allows you to change input in blue, and the tutorial notes will dynamically update so that you can learn fast.

Also contains an instant search box that will return excel function information immediately as you type

Exchange Rates

Picks up the latest exchange rate for any currency between two currencies from Yahoo Finance.

Expand Master and Build Polynomial Equations

This calculator is the __ultimate__ expansion tool to multiply polynomials. It expands algebraic expressions listed below using all 26 variables (a-z) as well as negative powers to handle polynomial multiplication. Includes multiple variable expressions as well as outside multipliers.

Also produces a polynomial equation from a given set of roots (polynomial zeros). * Binomial Expansions c(a + b)^{x}

* Polynomial Expansions c(d + e + f)^{x}

* FOIL Expansions (a + b)(c + d)

* Multiple Parentheses Multiplications c(a + b)(d + e)(f + g)(h + i)

Also produces a polynomial equation from a given set of roots (polynomial zeros). * Binomial Expansions c(a + b)

* Polynomial Expansions c(d + e + f)

* FOIL Expansions (a + b)(c + d)

* Multiple Parentheses Multiplications c(a + b)(d + e)(f + g)(h + i)

Expanded Notation

Writes the expanded notation for a number.

Expected Frequency

Given a contingency table (two-way table), this will calculate expected frequencies and then determine a conclusion based on a Χ^{2} test with critical value test and conclusion.

Exponential Distribution

Calculates the Probability Density Function (PDF) and Cumulative Density Function (CDF) of the exponential distribution as well as the mean, variance, standard deviation, and entropy.

Exponential Growth

This solves for any 1 of the 4 items in the exponential growth equation or exponential decay equation, Initial Value (P), Ending Value (A), Rate (r), and Time (t).

Exponential Identity

Calculates the square root of a positive integer using the Exponential Identity Method

F Test Statistic

Calculates the F-test statistic for two populations

Factorials

Calculates the following factorial items:

* A factorial of one number such as n!

* A factorial of a numerator divided by a factorial of a denominator such as n!m!/a!b!

* Double Factorials such as n!!

* Stirlings Approximation for n!

* A factorial of one number such as n!

* A factorial of a numerator divided by a factorial of a denominator such as n!m!/a!b!

* Double Factorials such as n!!

* Stirlings Approximation for n!

Factoring and Root Finding

This calculator factors a binomial including all 26 variables (a-z) using the following factoring principles:

* Difference of Squares

* Sum of Cubes

* Difference of Cubes

* Binomial Expansions

* Quadratics

* Factor by Grouping

* Common Term

This calculator also uses the Rational Root Theorem (Rational Zero Theorem) to determine potential roots

* Factors and simplifies Rational Expressions of one fraction

* Determines the number of potential*positive* and *negative* roots using Descarte’s Rule of Signs

* Difference of Squares

* Sum of Cubes

* Difference of Cubes

* Binomial Expansions

* Quadratics

* Factor by Grouping

* Common Term

This calculator also uses the Rational Root Theorem (Rational Zero Theorem) to determine potential roots

* Factors and simplifies Rational Expressions of one fraction

* Determines the number of potential

Factorization

Given a positive integer, this calculates the following for that number:

1) Factor pairs and prime factorization and prime power decomposition

2) Factors and Proper Factors 3) Aliquot Sum

1) Factor pairs and prime factorization and prime power decomposition

2) Factors and Proper Factors 3) Aliquot Sum

Falling Object

Calculates any of the 3 items in the falling object formula, distance (s), acceleration (a), and time (t).

Fermats Little Theorem

For any integer a and a prime number p, this demonstrates Fermats Little Theorem.

Fibonacci Retracement and Extension Levels

Shows the fibonacci retracement and extension levels

Fibonacci Sequence

Generates a list of the first 100 Fibonacci numbers.

FIFO and LIFO

Takes accounting entries using the FIFO (first in first out) and LIFO (last in first out) inventory methods.

Find two numbers word problems

Given two numbers with a sum of s where one number is n greater than another, this calculator determines both numbers.

Finite Field

Demonstrates the addition table and multiplication table for a finite field (Galois Field) of n denoted GF(n).

Fisher Transformation and Fisher Inverse

Given a correlation coefficient (r), this calculates the Fisher Transformation (z).

Given a Fisher Transformation (r), this calculates the Fisher Inverse (r)

Given a Fisher Transformation (r), this calculates the Fisher Inverse (r)

Fishers Exact Test

Given a, b, c, and d, this calculates the probability of any such set of values using Fishers exact Test

Floor

Determines the floor of a number

Forward Rate

Given two times and two zero-coupon yield rates at those times, this calculates the forward rate.

Fraction Cancellation Property

Demonstrates the Fraction Cancellation Property

Fractions and Mixed Numbers

Given (improper fractions, proper fraction, mixed numbers, or whole numbers), this performs the following operations:

* Addition (Adding)

* Subtraction (Subtracting)

* Positive Difference (Absolute Value of the Difference)

* Multiplication (Multiplying)

* Division (Dividing: complex fraction division is included)

* Compare Fractions

* Simplifying of proper and improper fractions as well as mixed numbers. Fractions will be reduced down as far as possible (Reducing Fractions).

* Reciprocal of a Fraction

* Find all fractions between two fractions

* Addition (Adding)

* Subtraction (Subtracting)

* Positive Difference (Absolute Value of the Difference)

* Multiplication (Multiplying)

* Division (Dividing: complex fraction division is included)

* Compare Fractions

* Simplifying of proper and improper fractions as well as mixed numbers. Fractions will be reduced down as far as possible (Reducing Fractions).

* Reciprocal of a Fraction

* Find all fractions between two fractions

Frequency and Wavelength and Photon Energy

Provides the following 3 items using the speed of light and Plancks constant (h):

- Given a frequency of centimeters, feet, meters, or miles the calculator will determine wavelength in Hz, KHz, MHz, GHz

- Given a wavelength of Hz, KHz, MHz, GHz, the calculator will determine frequency in centimeters, feet, meters, or miles

- Calculates photon energy

- Given a frequency of centimeters, feet, meters, or miles the calculator will determine wavelength in Hz, KHz, MHz, GHz

- Given a wavelength of Hz, KHz, MHz, GHz, the calculator will determine frequency in centimeters, feet, meters, or miles

- Calculates photon energy

Frequency Conversions

Converts between the following frequencies:

hertz

millihertz

kilohertz

megahertz

gigahertz

terahertz

rps

rpm

rph

hertz

millihertz

kilohertz

megahertz

gigahertz

terahertz

rps

rpm

rph

Frequency Distribution Table

Determines the classes and frequency distribution using the 2 to k rule.

Function

Takes various functions (exponential, logarithmic, signum (sign), polynomial, linear with constant of proportionality, constant, absolute value), and classifies them, builds ordered pairs, and finds the y-intercept and x-intercept and domain and range if they exist.

Functions-Derivatives-Integrals

Given a polynomial expression, this calculator evaluates the following items:

1) Functions ƒ(x). Your expression will also be evaluated at a point, i.e., ƒ(1)

2) 1^{st} Derivative ƒ'(x) The derivative of your expression will also be evaluated at a point, i.e., ƒ'(1)

3) 2^{nd} Derivative ƒ''(x) The second derivative of your expression will be also evaluated at a point, i.e., ƒ''(1)

4) Integrals ∫ƒ(x) The integral of your expression will also be evaluated on an interval, i.e., [0,1]

5) Using Simpsons Rule, the calculator will estimate the value of ≈ ∫ƒ(x) over an interval, i.e., [0,1]

1) Functions ƒ(x). Your expression will also be evaluated at a point, i.e., ƒ(1)

2) 1

3) 2

4) Integrals ∫ƒ(x) The integral of your expression will also be evaluated on an interval, i.e., [0,1]

5) Using Simpsons Rule, the calculator will estimate the value of ≈ ∫ƒ(x) over an interval, i.e., [0,1]

Fundamental Rule of Counting

Given a set of items, this calculates the total number of groups/choices that can be formed using the rule of product.

Gamma Constant γ

This calculator generates 5000 iterations for the development of the gamma constant γ

GDP Deflator

Calculates the GDP Deflator using nominal and real GDP

Geometric Annuity Immediate

Given an immediate annuity with a geometric progression, this solves for the following items

1) Present Value

2) Accumulated Value (Future Value)

3) Payment

1) Present Value

2) Accumulated Value (Future Value)

3) Payment

Geometric Distribution

Using a geometric distribution, it calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, standard deviation, skewness, and kurtosis.

Calculates moment number t using the moment generating function

Calculates moment number t using the moment generating function

Geometric Mean of a Triangle

Given certain segments of a special right triangle, this will calculate other segments using the geometric mean

Geometry Summary

This is a table which lists out the formulas for geometric shapes

Golden Ratio

Solves for 2 out of the 3 variables for a segment broken in 2 pieces that satisfies the Golden Ratio (Golden Mean).

(a) Large Segment

(b) Small Segment

(a + b) Total Segment

(a) Large Segment

(b) Small Segment

(a + b) Total Segment

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Actual Questions from the Google Analytics Certification Test/Exam.

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Grand Mean

Calculates the grand mean of a set of number sets.

Gravitational Force

Using Sir Isaac Newtons Law of Gravitational Force, this calculator determines the force between two objects with mass in kilograms at a distance apart in meters using the constant of gravity.

Greatest Common Factor and Least Common Multiple

Given 2 or 3 numbers, the calculator determines the following:

* Greatest Common Factor (GCF) using Factor Pairs

* Rewrite Sum using the Distributive Property and factoring out the GCF

* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs

* GCF using the method of Successive Division

* GCF using the Prime Factorization method

* Determine if the numbers are coprime and twin prime

* Greatest Common Factor (GCF) using Factor Pairs

* Rewrite Sum using the Distributive Property and factoring out the GCF

* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs

* GCF using the method of Successive Division

* GCF using the Prime Factorization method

* Determine if the numbers are coprime and twin prime

Gross Domestic Product (GDP)

Solves for all items of the Gross Domestic Product (GDP) equation:

GDP

Consumption (C)

Investment (I)

Government Spending (G)

Exports (X)

Imports (I).

GDP

Consumption (C)

Investment (I)

Government Spending (G)

Exports (X)

Imports (I).

Half-Life of a Substance

Given a half-life (h) of a substance at time t, this determines the new substance size at time t_{n}, otherwise known as decay.

Hardy-Weinberg

Given a dominant gene frequency probability of p, this displays the Punnet Square Hardy Weinberg frequencies

Heat Index

Given a temperature in Fahrenheit and a relative humidity percentage, this calculates the Heat Index.

Heptagonal Number

This calculator determines the nth heptagonal number

Herfindahl Index

Given a market share of a set of companies, this determines the Herfindahl Index and Normalized Herfindahl Index.

Hexagon

This calculator solves for side length (s), Area (A), and Perimeter (P) of a hexagon given one of the 3 entries.

Hexagonal Number

This calculator determines the nth hexagonal number

High and Low Method

Calculates the variable cost per unit, total fixed costs, and the cost volume formula

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Hyperbola

Given a hyperbola equation, this calculates:

* Equation of the asymptotes

* Intercepts

* Foci (focus) points

* Eccentricity ε

* Latus Rectum

* semi-latus rectum

* Equation of the asymptotes

* Intercepts

* Foci (focus) points

* Eccentricity ε

* Latus Rectum

* semi-latus rectum

Hypergeometric Distribution

Calculates the probability of drawing x objects out of a subgroup of k with n possibilities in a total group of N using the hypergeometric distribution.

Hypothesis Testing for a proportion

Performs hypothesis testing using a test statistic for a proportion value.

Hypothesis testing for the mean

Performs hypothesis testing on the mean both one-tailed and two-tailed and derives a rejection region and conclusion

Imaginary Numbers

Calculates the imaginary number i where i = √-1 raised to any integer power as well as the product of imaginary numbers of quotient of imaginary numbers

Inclusive Number Word Problems

Given an integer A and an integer B, this calculates the following inclusive word problem questions:

1) The Average of all numbers inclusive from A to B

2) The Count of all numbers inclusive from A to B

3) The Sum of all numbers inclusive from A to B

1) The Average of all numbers inclusive from A to B

2) The Count of all numbers inclusive from A to B

3) The Sum of all numbers inclusive from A to B

Income and Price Elasticity

Solves for any one of the 5 components that make up the income/price elasticity of demand equation.

Incremental Cash Flow

Given cash inflows, outflows, depreciable amounts, and tax rates, this determines the incremental cash flows.

Input Table

Given an input table with input and output values, this will determine the operator and rule used to populate the missing values.

Installment Sales Method of Accounting

Given a sales price, cost amount, installment payment amount and term, this will show the accounting for the Installment Payment method.

Int Function

Determines the integer of a number

Interpolation

Given a set of data, this interpolates using the following methods:

* Linear Interpolation

* Nearest Neighbor (Piecewise Constant)

* Polynomial Interpolation

* Linear Interpolation

* Nearest Neighbor (Piecewise Constant)

* Polynomial Interpolation

Interval Counting

Evaluates a set of interval counting statements in the form a(b)c.

Interval Notation and Set Builder Notation

This calculator translates the following inequality statements to interval notation and set builder notation:

* x < 5

* y <= 5

* z > 5

* a >= 5

* b < 5 or b > 20

* Compound Inequality such as 0 <= c < 4

* |x|<3

* Reverse Interval Notation to Inequality Statement such as (-7,5]

* {x|x<1}

* Word representations of interval notations such as 2 is less than or equal to x is less than or equal to 8

* x < 5

* y <= 5

* z > 5

* a >= 5

* b < 5 or b > 20

* Compound Inequality such as 0 <= c < 4

* |x|<3

* Reverse Interval Notation to Inequality Statement such as (-7,5]

* {x|x<1}

* Word representations of interval notations such as 2 is less than or equal to x is less than or equal to 8

Interval Partition

Given a partitioned interval, this evaluates the norm (mesh) by calculating each subinterval

Isosceles Triangle

Given a long side (a) and a short side (b), this determines the following items of the isosceles triangle:

* Area (A)

* Semi-Perimeter (s)

* Altitude a (ha)

* Altitude b (hb)

* Altitude c (hc)

* Area (A)

* Semi-Perimeter (s)

* Altitude a (ha)

* Altitude b (hb)

* Altitude c (hc)

Joint Variation Equations

Given a joint variation (jointly proportional) of a variable between two other variables with a predefined set of conditions, this will create the joint variation equation and solve based on conditions.

Kinematic Equations

Given the 5 inputs of the 4 kinematic equations, this will solve any of the equations it can based on your inputs for the kinematics.

Kinetic Energy

Solves for any of the 3 items in the kinetic energy equation: Energy (e), Mass (m), and Velocity (v)

Lagrange Four Square Theorem (Bachet Conjecture)

Builds the Lagrange Theorem Notation (Bachet Conjecture) for any natural number using the Sum of four squares.

Lattice Multiplication

Performs Lattice Multiplication or the Napiers Bones (Napier Rods) method of multiplication

Letter Arrangements in a Word

Given a word, this determines the number of unique arrangements of letters in the word.

Line Equation-Slope-Distance-Midpoint-Y intercept

Enter 2 points, and this calculates the following:

* Slope of the line (rise over run) and the line equation y = mx + b that joins the 2 points

* Midpoint of the two points

* Distance between the 2 points

* 2 remaining angles of the rignt triangle formed by the 2 points

* y intercept of the line equation

* Point-Slope Form

* Parametric Equations and Symmetric Equations

Or, if you are given a point on a line and the slope of the line including that point, this calculates the equation of that line and the y intercept of that line equation, and point-slope form.

Also allows for the entry of m and b to form the line equation

* Slope of the line (rise over run) and the line equation y = mx + b that joins the 2 points

* Midpoint of the two points

* Distance between the 2 points

* 2 remaining angles of the rignt triangle formed by the 2 points

* y intercept of the line equation

* Point-Slope Form

* Parametric Equations and Symmetric Equations

Or, if you are given a point on a line and the slope of the line including that point, this calculates the equation of that line and the y intercept of that line equation, and point-slope form.

Also allows for the entry of m and b to form the line equation

Linear Congruential Generator

Using the linear congruential generator algorithm, this generates a list of random numbers based on your inputs

Linear Conversions

Converts to and from the following linear measurements for a given quantity:

Inches

Feet

Yards

Miles

Micrometer

Millimeters

Centimeters

Meters

Kilometers

Furlongs

Inches

Feet

Yards

Miles

Micrometer

Millimeters

Centimeters

Meters

Kilometers

Furlongs

Liquid Conversions

Takes a liquid measurement as seen in things like recipes and performs the following conversions: ounces, pints, quarts, gallons, teaspoon (tsp), tablespoon (tbsp), microliters, milliliters, deciliters, kiloliters,liters, bushels, and cubic meters.

Littles Law

Given two out of the three inputs for Littles Law, Throughput (TH), Cycle Time (CT, and WIP, this solves for the third item.

Logarithms

Using the formula Log a_{b} = e, this calculates the 3 pieces of a logarithm equation:

1) Base (b)

2) Exponent

3) Log Result

In addition, it converts

* Expand logarithmic expressions

1) Base (b)

2) Exponent

3) Log Result

In addition, it converts

* Expand logarithmic expressions

Logarithms and Natural Logarithms and Eulers Constant (e)

This calculator does the following:

* Takes the Natural Log base e of a number x Ln(x) → log_{e}x

* Raises e to a power of y, e^{y}

* Performs the change of base rule on log_{b}(x)

* Solves equations in the form b^{cx} = d where b, c, and d are constants and x is any variable a-z

* Solves equations in the form ce^{dx}=b where b, c, and d are constants, e is Eulers Constant = 2.71828182846, and x is any variable a-z

* Exponential form to logarithmic form for expressions such as 5^{3} = 125 to logarithmic form

* Logarithmic form to exponential form for expressions such as Log_{5}125 = 3

* Takes the Natural Log base e of a number x Ln(x) → log

* Raises e to a power of y, e

* Performs the change of base rule on log

* Solves equations in the form b

* Solves equations in the form ce

* Exponential form to logarithmic form for expressions such as 5

* Logarithmic form to exponential form for expressions such as Log

Logistic Map

Given r, x_{0} and (n) trials, this will display the logistic map.

Lotto Drawing Probability

Given a lotto drawing with a Pick(x) out of (y) total choices, this calculates the probability of winning that lottery picking all (x) correct numbers.

MAPE - MPE - MAPD

Given a time series of actual and forecasted values, this determines the following:

* Mean Absolute Percentage Error (MAPE) also known as the Mean Absolute Percentage Deviation (MAPD)

* Symmetric Mean Absolute Percentage Error (sMAPE)

* Mean Absolute Percentage Error (MPE)

* Mean Absolute Percentage Error (MAPE) also known as the Mean Absolute Percentage Deviation (MAPD)

* Symmetric Mean Absolute Percentage Error (sMAPE)

* Mean Absolute Percentage Error (MPE)

Margin of Error from Confidence Interval

Given a confidence interval, this determines the margin of error and sample mean.

Markup Markdown

Given the 3 items of a markup word problem, cost, markup percentage, and sale price, this solves for any one of the three given two of the items.

Math Problem Library

Contains word problems and other long form problems with step-by-step solutions.

Mathematical Constants and Identities

Calculates and explains various mathematical constants such as:

* Gelfonds (Gelfond's) Constant

* Eulers Constant

* Gelfonds (Gelfond's) Constant

* Eulers Constant

Matrix Properties

Given a matrix |A|, this calculates the following items if they exist:

* Determinant = det(A)

* Inverse = A^{-1}

* Transpose = A^{T}

* Adjoint = adj(A)

* Eigen equation (characteristic polynomial) = det|λI - A|

* Trace = tr(A)

* Gauss-Jordan Elimination using Row Echelon and Reduced Row Echelon Form

* Dimensions of |A| m x n

* Order of a matrix

* Euclidean Norm ||A||

* Magic Sum if it exists

* Determines if |A| is an Exchange Matrix

* Determinant = det(A)

* Inverse = A

* Transpose = A

* Adjoint = adj(A)

* Eigen equation (characteristic polynomial) = det|λI - A|

* Trace = tr(A)

* Gauss-Jordan Elimination using Row Echelon and Reduced Row Echelon Form

* Dimensions of |A| m x n

* Order of a matrix

* Euclidean Norm ||A||

* Magic Sum if it exists

* Determines if |A| is an Exchange Matrix

Mcnemar Test

Given a 2 x 2 contingency table and a significance level, this will determine the test statistic, critical value, and hypothesis conclusion using a Mcnemar test.

Method of Equated Time-Exact Method-Macaulay Duration-Volatility

Given a set of cash flows at certain times, and a discount rate, this will calculate t using the equated time method and the exact method, as well as the macaulay duration and volatility

Military Phonetic Alphabet

Translates a statement or phrase into the military phonetic alphabet

Missing Average

Given a set of scores and an average, this calculates the next score necessary to attain that average

Modified Internal Rate of Return (MIRR)

Given a set of positive/negative cash flows, a finance rate, and a reinvestment rate, this calculates the modified internal rate of return

Modified Payback Period

Given a set of cash inflows, outflows, and a discount rate, this calculates the modified payback period.

Modular Exponentiation and Successive Squaring

Solves x^{n} mod p using the following methods:

* Modular Exponentiation

* Successive Squaring

* Modular Exponentiation

* Successive Squaring

Molar Mass

Calculates the molar mass of an element or solution.

Moment of Inertia

Calculates any of the 3 items from the Moment of Inertia equation, Inertia (I), Mass (M), and Length (L).

Money Multiplier

Given a reserve ratio and initial deposit amount, this calculates the money multiplier and displays the re-lending process table for a bank to other banks including reserves and loans.

Morse Code Translator

Given a phrase with letters, numbers, and most punctuation symbols, the calculator will perform the following duties:

1) Translate that phrase to Morse Code.

2) Translate the Morse Code to a Dit-Dah message

3) Calculate the number of dots in the message

4) Calculate the number of dashes in the message

This also translates__from__ Morse Code back to English.

1) Translate that phrase to Morse Code.

2) Translate the Morse Code to a Dit-Dah message

3) Calculate the number of dots in the message

4) Calculate the number of dashes in the message

This also translates

Mortgage

Calculates the monthly payment, APY%, total value of payments, principal/interest/balance at a given time as well as an amortization table on a __standard__ or __interest only__ home or car loan with fixed interest rate.

Multifactorials

Calculates the multifactorial n!^{(m)}

Multinomial Distribution

Given a set of x_{i} counts and a respective set of probabilities θ_{i}, this calculates the probability of those events occurring.

Multiplication Equality Property

Demonstrates the Multiplication Equality Property

Multiplication Property Of Inequality

Demonstrates the Multiplication Property Of Inequality

Multiplicative Identity Property

Demonstrates the Multiplicative Identity property using a number.

Multiplicative Inverse Property

Demonstrates the Multiplicative Inverse property using a number.

Negative Binomial Distribution

Calculates the probability of the k^{th} success on the x^{th} try for a negative binomial distribution also known as the Pascal distribution.? ? It calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, and standard deviation.

Net Present Value (NPV) - Internal Rate of Return (IRR) - Profitability Index

Given a series of cash flows C_{t} at times t and a discount rate of (i), the calculator will determine the Net Present Value (NPV) at time 0, also known as the discounted cash flow model.

Profitability Index

Also determines an Internal Rate of Return (IRR) based on a series of cash flows

Profitability Index

Also determines an Internal Rate of Return (IRR) based on a series of cash flows

Newton Method

Calculates the square root of a positive integer using the Newton Method

Nominal Yield

Given an effective annual rate of interest based on a compounding period, this determines the nominal yield.

Nonagon

Calculates the side, perimeter, and area of a nonagon

Nonagonal Number

This calculator determines the nth nonagonal number

Normal Distribution

Calculates the probability that a random variable is less than or greater than a value or between 2 values using the Normal Distribution z-score (z value) method (Central Limit Theorem).

Also calculates the Range of values for the 68-95-99.7 rule, or three-sigma rule, or empirical rule

Also calculates the Range of values for the 68-95-99.7 rule, or three-sigma rule, or empirical rule

Number Line Midpoint

Calculates a midpoint between 2 points on a number line or finds the second endpoint if one endpoint and midpoint are given.

Number Property

This calculator determines if an integer you entered has any of the following properties:

* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)

* Evil Numbers or Odious Numbers

* Perfect Numbers, Abundant Numbers, or Deficient Numbers

* Triangular Numbers

* Prime Numbers or Composite Numbers

* Automorphic (Curious)

* Undulating Numbers

* Square Numbers

* Cube Numbers

* Palindrome Numbers

* Repunit Numbers

* Apocalyptic Power

* Pentagonal

* Tetrahedral (Pyramidal)

* Narcissistic (Plus Perfect)

* Catalan

* Repunit

* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)

* Evil Numbers or Odious Numbers

* Perfect Numbers, Abundant Numbers, or Deficient Numbers

* Triangular Numbers

* Prime Numbers or Composite Numbers

* Automorphic (Curious)

* Undulating Numbers

* Square Numbers

* Cube Numbers

* Palindrome Numbers

* Repunit Numbers

* Apocalyptic Power

* Pentagonal

* Tetrahedral (Pyramidal)

* Narcissistic (Plus Perfect)

* Catalan

* Repunit

Octagonal Number

This calculator determines the nth octagonal number

Odds Probability

Given an odds prediction m:n of an event success, this calculates the probability that the event will occur or *not* occur

Odds Ratio

This calculator determines the odds ratio for 2 groups X and Y with success and failure for an outcome.

Opposite Numbers

Given a positive or negative integer (n), this calculates the opposite number of n

Order of Operations

Evaluates an expression using the order of operations, or PEMDAS or PEDMAS or BEDMAS.

Ordering Numbers

Given a list of numbers, this will order the list ascending (lowest to highest) or descending (highest to lowest)

P-Hat Confidence Interval

Given a large sized distribution, and a success amount for a certain criteria x, and a confidence percentage, this will calculate the confidence interval for that criteria.

Parabolas

Determines the focus, directrix, and other related items for a parabola.

Parallel Resistors

Given a set of parallel resistors, this calculates the total resistance in ohms, denoted R_{t}

Partial Quotient

Divides 2 numbers using the Partial Quotient

Pascal-Floyd-Leibniz Triangle

This generates the first (n) rows of the following triangles:

Pascal's Triangle

Leibniz's Harmonic Triangle

Floyd's Triangle

Pascal's Triangle

Leibniz's Harmonic Triangle

Floyd's Triangle

Payback Period

Given a set of cash inflows and cash outflows at certain times, this determines the net cash flow, cumulative cash flow, and payback period

Pentagonal Number

This calculator determines the nth pentagonal number

Pentagons

Given a side length and an apothem, this calculates the perimeter and area of the pentagon.

Percent Off Problem

Given the 3 items of a percent word problem, Reduced Price, percent off, and full price, this solves for any one of the three given two of the items.

Percentage of Completion

Given a sales price, total costs, and costs per period, this determines the gross profit to date using the percentage of completion method.

Percentage of the Pie Word Problem

This takes two or three fractions of ownership in some good or object, and figures out what remaining fraction is left over.

Percentage-Decimal-Fraction Relations

Calculates the relational items between a fraction, a decimal (including repeating decimal and terminating decimal), a percentage, and the numerator and denominator piece of that fraction. Also calculates the percentage change going from one number to another or the amount increase or decrease of a percentage above/below a number. Round decimals.

Percentile for Normal Distribution

Given a mean, standard deviation, and a percentile range, this will calculate the percentile value.

Percentiles

Given a set of scores and a target score, this will determine the percentile of the target score using two different formulas.

Periodic Table Items

Shows details of all the elements on the periodic table including atomic weight, natural state.

Permutations and Combinations

Calculates the following:

Number of permutation(s) of n items arranged in r ways =_{n}P_{r}

Number of combination(s) of n items arranged in r__unique__ ways = _{n}C_{r} including subsets of sets

Number of permutation(s) of n items arranged in r ways =

Number of combination(s) of n items arranged in r

Phone Number Translator

Given a phone number with letters in it, this calculator will determine the numeric phone number for you to dial.

Phonetic Algorithms

Given a name, this calculator translates a name to one of the following 3 phonetic algorithms:

* Soundex

* Metaphone

* New York State Identification and Intelligence System (NYSIIS)

* Soundex

* Metaphone

* New York State Identification and Intelligence System (NYSIIS)

PI

This calculator performs operations with PI and gives you other options for π related calculations.

Place Value

Given a whole number or a decimal, the calculator will perform place number analysis on each place in your number.

For the whole and decimal portion, the calculator goes out to the 100 trillion mark.

For the whole and decimal portion, the calculator goes out to the 100 trillion mark.

Plane and Parametric Equations in R

Given a vector A and a point (x,y,z), this will calculate the following items:

1) Plane Equation passing through (x,y,z) perpendicular to A

2) Parametric Equations of the Line L passing through the point (x,y,z) parallel to A

1) Plane Equation passing through (x,y,z) perpendicular to A

2) Parametric Equations of the Line L passing through the point (x,y,z) parallel to A

Point and a Line

Enter any line equation and a 2 dimensional point. The calculator will figure out if the point you entered lies on the line equation you entered. If the point does not lie on the line, the distance between the point and line will be calculated.

Point Estimate and Margin of Error

Given an upper bound and a lower bound and a sample size, this calculate the point estimate, margin of error.

Poisson Distribution

Calculates the probability of 3 separate events that follow a poisson distribution.

It calculates the probability of exactly k successes P(x = k)

No more than k successes P (x <= k)

Greater than k successes P(x >= k)

Each scenario also calculates the mean, variance, standard deviation, skewness, and kurtosis.

Calculates moment number t using the moment generating function

It calculates the probability of exactly k successes P(x = k)

No more than k successes P (x <= k)

Greater than k successes P(x >= k)

Each scenario also calculates the mean, variance, standard deviation, skewness, and kurtosis.

Calculates moment number t using the moment generating function

Polar and Cartesian Coordinates

This calculator handles the following conversions:

* Ordered Pair Evaluation and symmetric points including the abcissa and ordinate

* Polar coordinates of (r,θ°) to Cartesian coordinates of (x,y)

* Cartesian coordinates of (x,y) to Polar coordinates of (r,θ°)

* Quadrant (I,II,III,IV) for the point entered.

* Equivalent Coordinates of a polar coordinate

* Rotate point 90°, 180°, or 270°

* reflect point over the x-axis

* reflect point over the y-axis

* reflect point over the origin

* Ordered Pair Evaluation and symmetric points including the abcissa and ordinate

* Polar coordinates of (r,θ°) to Cartesian coordinates of (x,y)

* Cartesian coordinates of (x,y) to Polar coordinates of (r,θ°)

* Quadrant (I,II,III,IV) for the point entered.

* Equivalent Coordinates of a polar coordinate

* Rotate point 90°, 180°, or 270°

* reflect point over the x-axis

* reflect point over the y-axis

* reflect point over the origin

Polar Conics

Given eccentricity (e), directrix (d), and angle θ, this determines the vertical and horizontal directrix polar equations.

Polygon Side

Determines the sides of a polygon given an interior angle sum.

Polygons

Using various input scenarios of a polygon such as side length, number of sides, apothem, and radius, this calculator determines Perimeter or a polygon and Area of the polygon.
This also determines interior angles of a polygon and diagonals of a polygon as well as the total number of 1 vertex diagonals.

Polynomial

This calculator will take an expression without division signs and combine like terms.

It will also analyze an polynomial that you enter to identify constant, variables, and exponents. It determines the degree as well.

It will also analyze an polynomial that you enter to identify constant, variables, and exponents. It determines the degree as well.

Pool Volume

Given a round shaped pool, this calculates the volume (Capacity) in gallons of the pool when filled with water

Portfolio Rate of Return

Given a portfolio of individual assets with returns and weights, this calculates the total portfolio rate of return.

Power Sets and Set Partitions

Given a set S, this calculator will determine the power set for S and all the partitions of a set.

Powers Of

Determines the powers of a number from 1 to n.

Pressure Conversions

This calculator converts between the following pressure measurements:

atmosphere

bar

dynes/cm2

in. Hg

in. water

kg/cm2

mbar

mtorr or micron Hg

Pa or N/m2

PSI or lb/in2

torr or mm Hg

atmosphere

bar

dynes/cm2

in. Hg

in. water

kg/cm2

mbar

mtorr or micron Hg

Pa or N/m2

PSI or lb/in2

torr or mm Hg

Pressure Law

This will solve for any of the 4 items in the Pressure Law equation, also known as Gay-Lussacs Law assuming constant volume

P1 ÷ T1 = P2 ÷ T2

P1 ÷ T1 = P2 ÷ T2

Probability (A U B U C)

Calculates the probability of a union of a three event sample space, A, B, and C, as well as P(A), P(B), P(C), P(A ∩ B), P(A ∩ C), P(B ∩ C), P(A ∩ B ∩ C).

Probability (A U B)

Given a 2 event sample space A and B, this calculates the probability of the following events:

P(A U B)

P(A)

P(B)

P(A ∩ B)

P(A U B)

P(A)

P(B)

P(A ∩ B)

Profit Equation

Using the Profit Equation with inputs (Revenue-Cost-Profit-Tax), this determines the relevant output including gross proft, gross profit margin, net profit, and net profit margin.

Proportion Sample Size

This calculator determines a sample size to select to meet certain criteria related to a confidence percentage, reliability percentage, and a p value proportion. Simply enter your values not using percentage signs. This works whether p^ is known or not known.

Proportions

1) Calculates the missing link of 2 equivalent proportions or ratios.

2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or*not* equivalent.
Note: You can use all allowable operators such as =,<,≤,>,≥

2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or

Put Call Parity

This solve for any of the 6 items in the put call parity for European options

Put Options and Call Options

Shows the basics of a call option and put option including intrinsic value, extrinsic value, and in/out/at the money

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Pythagorean Theorem

Figures out based on user entry the missing side or missing hypotenuse of a right triangle. In addition, the calculator shows the proof of the Pythagorean Theorem and then determines by numerical evaluation if the 2 sides and hypotenuse you entered are a right triangle using the Pythagorean Theorem

Pythagorean Theorem Trig Proofs

Shows the proof of 3 pythagorean theorem related identities using the angle θ:

Sin^{2}(θ) + Cos^{2}(θ) = 1

Tan^{2}(θ) + 1 = Sec^{2}(θ)

Sin(θ)/Cos(θ) = Tan(θ)

Sin

Tan

Sin(θ)/Cos(θ) = Tan(θ)

Quadratic Equations and Inequalities

Solves for quadratic equations in the form ax^{2} + bx + c = 0. Also generates practice problems as well as hints for each problem.

* Solve using the quadratic formula and the discriminant Δ

* Complete the Square for the Quadratic

* Factor the Quadratic

* Y-Intercept

* Vertex (h,k) of the parabola formed by the quadratic where h is the Axis of Symmetry as well as the vertex form of the equation a(h - h)^{2} + k

* Concavity of the parabola formed by the quadratic

* Using the Rational Root Theorem (Rational Zero Theorem), the calculator will determine potential roots which can then be tested against the synthetic calculator.

* Solve using the quadratic formula and the discriminant Δ

* Complete the Square for the Quadratic

* Factor the Quadratic

* Y-Intercept

* Vertex (h,k) of the parabola formed by the quadratic where h is the Axis of Symmetry as well as the vertex form of the equation a(h - h)

* Concavity of the parabola formed by the quadratic

* Using the Rational Root Theorem (Rational Zero Theorem), the calculator will determine potential roots which can then be tested against the synthetic calculator.

Quadrilateral

Given 4 points entered, this determines the area using Brahmaguptas Formula and perimeter of the quadrilateral formed by the points as well as checking to see if the quadrilateral (quadrangle) is a parallelogram.

Quartic Equations

Solves quartic equations in the form ax^{4} + bx^{3} + cx^{2} + dx + e using the following methods:

1) Solve the long way for all roots and the discriminant Δ

2) Rational Root Theorem (Rational Zero Theorem) to solve for real roots followed by the synthetic div/quadratic method for the other imaginary roots if applicable.

1) Solve the long way for all roots and the discriminant Δ

2) Rational Root Theorem (Rational Zero Theorem) to solve for real roots followed by the synthetic div/quadratic method for the other imaginary roots if applicable.

Quotient-Remainder Theorem

Given 2 positive integers n and d, this displays the quotient remainder theorem.

Random Sampling from the Normal Distribution

This performs hypothesis testing on a sample mean with critical value on a sample mean or calculates a probability that Z <= z or Z >= z using a random sample from a normal distribution.

Random Test

Given a set of data and an α value, this determines the test statistic and accept/reject hypothesis based on randomness of a dataset.

Rates of Return

Given a set of stock prices and dividends if applicable, this calculates the periodic rate of return and the logarithmic rate of return

Rational Exponents - Fractional Indices

This calculator evaluates and simplifies a rational exponent expression in the form a^{b/c} where a is any integer *or* any variable [a-z] while b and c are integers. Also evaluates the product of rational exponents

Rational Number Subtraction

Subtracting 2 numbers, this shows an equivalent operations is adding the additive inverse. p - q = p + (-q)

Rational,Irrational,Natural,Integer Property

This calculator takes a number, decimal, or square root, and checks to see if it has any of the following properties:

* Integer Numbers

* Natural Numbers

* Rational Numbers

* Irrational Numbers

* Integer Numbers

* Natural Numbers

* Rational Numbers

* Irrational Numbers

Ratios

* Simplifies a ratio of a:b

* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.

* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.

Rectangles and Parallelograms

Solve for Area, Perimeter, length, and width of a rectangle or parallelogram and also calculates the diagonal length as well as the circumradius and inradius.

Rectangular Number

This calculator determines the nth rectangular number

Reference Angle

Calculates the reference angle for a given angle.

Reflexive Property

Demonstrates the reflexive property of congruence using a number.

Resistor Color Codes

Given 3 Band level color codes and a tolerance color chosen, this calculates the resistance in ohms and the tolerance percentage

RGB and HEX conversions

This converts HTML colors from RGB (Red, Green, Blue) to HEX and HEX to RGB (Red, Green, Blue) as well as calculate the Hue.

Rhombus

Given inputs of a rhombus, this calculates the following:

Perimeter of a Rhombus

Area of a Rhombus

Side of a Rhombus

Perimeter of a Rhombus

Area of a Rhombus

Side of a Rhombus

Right Triangles

This solves for all the pieces of a right triangle based on given inputs using items like the sin ratio, cosine ratio, tangent ratio, and the Pythagorean Theorem as well as the inradius.

Roster Notation

Given a set of numbers, this displays the roster notation

Roulette

Calculates the probability for different bets on a roulette wheel including expected return on a monetary bet.

Roulette Cumulative Betting

This calculator displays the probability and return grid for a roulette scenario where you play x games, betting y per number playing z numbers per game.

Rounding

Rounds a number to the nearest number of your choice

Rule of 72

Calculates how long it would take money to double (doubling time) using the rule of 72 interest approximation as well as showing the mathematical proof of the Rule of 72.

Rule of Succession

Given s successes in n independent trials, this calculates the probability that the next repetition is a success

Run Length Encoding

Given a string, this will determine the run length encoding using repeating patterns of characters.

Salary Converter

This calculator converts an annual salary to the following measures:

* Monthly

* Weekly

* Daily

* Hourly

* Each Minute

* Each Second

* Monthly

* Weekly

* Daily

* Hourly

* Each Minute

* Each Second

Sales Price Variance

Calculates the Sales Price Variance and Total Variance for a group of products

Sales Tax

Given a sales price and a total bill, this calculates the sales tax amount and sales tax percentage

Sample Size Reliability for μ

Given a population standard deviation σ, a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.

Sample Size Requirement for the Difference of Means

Given a population standard deviation 1 of σ_{1}, a population standard deviation 2 of σ_{2} a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.

Sample Space Probability

Given a sample space S and an Event Set E, this calculates the probability of the event set occuring.

SAT Practice Exam

This is a practice exam for the SAT (Standard Aptitude Test).

Sectoral Balance

Solves for any of the 6 inputs in the Sectoral Balance equation by Wynne Godley

Security Market Line and Treynor Ratio

Solves for any of the 4 items in the Security Market Line equation, Risk free rate, market return, Β, and expected return as well as calculate the Treynor Ratio.

Security Plus Exam

Exam answers and Study Guide for the Security Plus Exam

Sequences

Given a function a(n) and a count of sequential terms you want to expand (n), this calcuator will determine the first (n) terms of your sequence, {a_{1}, a_{2}, ..., a_{n}}

Set Notation

Given two number sets A and B, this determines the following:

* Union of A and B, denoted A U B

* Intersection of A and B, denoted A ∩ B

* Elements in A not in B, denoted A - B

* Elements in B not in A, denoted B - A

* Symmetric Difference A Δ B

* The Concatenation A · B

* The Cartesian Product A x B

* Cardinality of A = |A|

* Cardinality of B = |B|

* Jaccard Index J(A,B)

* Jaccard Distance J_{σ}(A,B)

* Dice's Coefficient

* If A is a subset of B

* If B is a subset of A

* Union of A and B, denoted A U B

* Intersection of A and B, denoted A ∩ B

* Elements in A not in B, denoted A - B

* Elements in B not in A, denoted B - A

* Symmetric Difference A Δ B

* The Concatenation A · B

* The Cartesian Product A x B

* Cardinality of A = |A|

* Cardinality of B = |B|

* Jaccard Index J(A,B)

* Jaccard Distance J

* Dice's Coefficient

* If A is a subset of B

* If B is a subset of A

Set Theory Notation

Evaluates and describes various set theory notation

Short Sale Yield Rate

Calculates the Yield Rate on a short sale of stock.

Sieve of Eratosthenes

Using the Sieve of Eratosthenes algorithm, this will show how many prime numbers are less than a number (n).

Sign Test

This will determine whether to accept or reject a null hypothesis based on a number set, mean value, alternative hypothesis, and a significance level using the Sign Test.

Signed Integer Operations

This performs a string of signed integer operations, either all addition and subtraction, or all multiplication and division.

Simple and Compound and Continuous Interest

Calculates any of the four parameters of the simple interest formula or compound interest formula or continuous compound formula

1) Principal

2) Accumulated Value (Future Value)

3) Interest

4) Time.

1) Principal

2) Accumulated Value (Future Value)

3) Interest

4) Time.

Simple Discount and Compound Discount

Given a principal value, interest rate, and time, this calculates the Accumulated Value using Simple Discount and Compound Discount

Simultaneous Equations

Solves a system of simultaneous equations with 2 unknowns using the following 3 methods:

1) Substitution Method (Direct Substitution)

2) Elimination Method

3) Cramers Method

1) Substitution Method (Direct Substitution)

2) Elimination Method

3) Cramers Method

Sine Wave

Solves for any of the 3 items of the Sine Wave: Peak Value, Average Value, and RMS value given 1 input.

Sinking Fund Depreciation Method

Using the Sinking Fund method of Depreciation, this calculator determines the following:

* Depreciation at time t (D_{t})

* Asset Value (A)

* Salvage Value (S)

* Book Value at time t (B_{t})

* Depreciation at time t (D

* Asset Value (A)

* Salvage Value (S)

* Book Value at time t (B

Special Triangles: Isosceles and 30-60-90

Given an Isosceles triangle (45-45-90) or 30-60-90 right triangle, the calculator will solve the 2 remaining sides of the triangle given one side entered.

Speed Conversions

This converts between the following speed measurements:

* mph

* ft/s

* km/h

* m/sec

* mph

* ft/s

* km/h

* m/sec

Split Fund Interest

Given an initial principal amount, interest rate on Fund 1, interest rate on Fund 2, and a total interest paid, calculates the amount invested in each fund.

Sports Pool Generator

This generator produces the following two sports (office) pools with shuffled scoring numbers (0 - 9):

1) Blank Sports Pool: This button generates a blank sports pool grid with shuffled numbers

2) Sports Pool with Names: This sports pool allows you to enter up to 100 names which will be randomly dropped into the blank grid boxes from Option 1 above.

This is easily copied and pasted into a program like Microsoft Word so that you can format it to your liking.

1) Blank Sports Pool: This button generates a blank sports pool grid with shuffled numbers

2) Sports Pool with Names: This sports pool allows you to enter up to 100 names which will be randomly dropped into the blank grid boxes from Option 1 above.

This is easily copied and pasted into a program like Microsoft Word so that you can format it to your liking.

Square Root Table

Generates a square root table for the first (n) numbers rounded to (r) digits

Square Roots and Exponents

Given a number (n), or a fraction (n/m), and/or an exponent (x), or product of up to 5 radicals, this determines the following:

* The square root of n denoted as √n

* The square root of the fraction n/m denoted as √n/m

* n raised to the x^{th} power denoted as n^{x} (Write without exponents)

* n raised to the x^{th} power raised to the yth power denoted as (n^{x})^{y} (Write without exponents)

* Product of up to 5 square roots: √a√b√c√d√e

* Write a numeric expression such as 8x8x8x8x8 in exponential form

* The square root of n denoted as √n

* The square root of the fraction n/m denoted as √n/m

* n raised to the x

* n raised to the x

* Product of up to 5 square roots: √a√b√c√d√e

* Write a numeric expression such as 8x8x8x8x8 in exponential form

Standard Notation

Calculates the following:

* The numeric notation of word notation

* Standard notation of expanded notation

* The numeric notation of word notation

* Standard notation of expanded notation

Standard Notation

Displays the Standard notation of expanded notation

Stopping-Braking Distance for a Car

Calculates the estimated stopping distance of a vehicle given a speed in miles per hour (mph)

Straight Line Depreciation

Solves for Depreciation Charge, Asset Value, Salvage Value, Time, N, and Book Value using the Straight Line Method.

Strain

Solves for any of the 3 items in the strain equation: Change in Length, Strain, and Original Length

Stress

Solves for any of the 3 items in the stress formula: Stress, Force, and Area

String Comparison Algorithms

Given two strings A and B, this calculates the following items:

1) Similar Text Pair Ranking Score

2) Levenshtein (Edit Distance).

1) Similar Text Pair Ranking Score

2) Levenshtein (Edit Distance).

Student-t Distribution Critical Values

Given an α value and degrees of freedom, this calculates the right-tailed test and left-tailed test critical values for the Student-t Distribution

Subtraction Equality Property

Demonstrates the Subtraction Equality Property

Subtraction Property Of Inequality

Demonstrates the Subtraction Property Of Inequality

Sum of Consecutive Numbers

Finds the sum of (n) consecutive integers, even or odd as well.

Sum of the First (n) Numbers

Determines the sum of the first (n)

* Whole Numbers

* Natural Numbers

* Even Numbers

* Odd Numbers

* Square Numbers

* Cube Numbers

* Fourth Power Numbers

* Whole Numbers

* Natural Numbers

* Even Numbers

* Odd Numbers

* Square Numbers

* Cube Numbers

* Fourth Power Numbers

Sum of the Years Digits (SOYD) Depreciation

Solves for Depreciation Charge, Asset Value, and Book Value using the Sum of the Years Digits Method

Sum to Product and Product to Sum Formulas

Given two angles in degrees of u and v, this determines the following:

* Sin(u) ± Sin(v)

* Cos(u) ± Cos(v)

* Sin(u)Sin(v)

* Cos(u)Cos(v)

* Sin(u)Cos(v)

* Cos(u)Sin(v)

* Sin(u + v)

* Sin(u - v)

* Cos(u + v)

* Cos(u - v)

* Tan(u + v)

* Tan(u - v)

* Sin(u) ± Sin(v)

* Cos(u) ± Cos(v)

* Sin(u)Sin(v)

* Cos(u)Cos(v)

* Sin(u)Cos(v)

* Cos(u)Sin(v)

* Sin(u + v)

* Sin(u - v)

* Cos(u + v)

* Cos(u - v)

* Tan(u + v)

* Tan(u - v)

Sun Shadow

This solves for various components and scenarios of the sun shadow problem

Survival Rates

Given a set of times and survival population counts, the calculator will determine the following:

Survival Population l_{x}

Mortality Population d_{x}

Survival Probability p_{x}

Mortality Probability q_{x}

In addition, the calculator will determine the probability of survival from t_{x} to t_{x + n}

Survival Population l

Mortality Population d

Survival Probability p

Mortality Probability q

In addition, the calculator will determine the probability of survival from t

Symmetric Property

Demonstrates the Symmetric property using a number.

Synthetic Division

Using Ruffinis Rule, this performs synthetic division by dividing a polynomial with a maximum degree of 6 by a term (x ± c) where c is a constant root using the factor theorem. The calculator returns a quotient answer that includes a remainder if applicable.

T-Bill

Calculates any of the four items of the T-Bill (Treasury Bill or TBill) formula:

1) Price (P)

2) Face Value (F)

3) Number of Weeks (w)

4) Yield Rate (y)

1) Price (P)

2) Face Value (F)

3) Number of Weeks (w)

4) Yield Rate (y)

Tally Marks

Shows the tally mark representation (tallies) for a positive integer.

Target Heart Rate

Given an age, this calculator determines the following 5 target heart rate zones:

Healthy Heart Zone (Warm up) 50 - 60%

Fitness Zone (Fat Burning) 60 - 70%

Aerobic Zone (Endurance Training) 70 - 80%

Anaerobic Zone (Performance Training) 80 - 90%

Red Line (Maximum Effort) 90 - 100%

Healthy Heart Zone (Warm up) 50 - 60%

Fitness Zone (Fat Burning) 60 - 70%

Aerobic Zone (Endurance Training) 70 - 80%

Anaerobic Zone (Performance Training) 80 - 90%

Red Line (Maximum Effort) 90 - 100%

Temperature Conversions

Performs the following temperature conversion measurements

* Fahrenheit (F)

* Celsius (C)

* Kelvin (K)

* Rankine (R)

* Newton (N)

* Reaumur

* Fahrenheit (F)

* Celsius (C)

* Kelvin (K)

* Rankine (R)

* Newton (N)

* Reaumur

Thin Lens Distance

Given two out of three items in the thin lens equation, this solves for the third.

Time Weighted Interest Method

Solves for Interest Rate based on 2 annual asset value events other than beginning or ending value using the Time Weighted Method

Time Zone Converter

Converts a time from one time zone (timezone) to another.

Tip Amount

Calculates the total bill with Tip and how much each person owes if the bill is split evenly.

Torus

Calculates the volume of a torus and surface area of a torus given major radius and minor radius.

Total Revenue

Given a quantity, price, and item, this calculates the total revenue.

Trade Cost

Calculates the saved hours under the electrician/carpenter model of specializing in jobs as well as opportunity cost.

Transitive Property

Demonstrates the Transitive property using a number.

Trapezoids

This calculator determines the following items for a trapezoid based on given inputs:

* Area of trapezoid

* Perimeter of a Trapezoid

* Area of trapezoid

* Perimeter of a Trapezoid

Triangle Coordinate Items

Enter 3 points for the vertices of a triangle, and this will calculate the area of that triangle and the centroid.

Triangle Inequality

This calculator displays 2 scenarios

1) Enter 3 sides of a triangle, and it will determine if the side lengths satisfy the properties of the triangle inequality and form a triangle

2) Enter 2 sides of a triangle, and this will determine an acceptable range for the length of the 3rd side of a triangle so that the 3rd side respects the Triangle Inequality.

1) Enter 3 sides of a triangle, and it will determine if the side lengths satisfy the properties of the triangle inequality and form a triangle

2) Enter 2 sides of a triangle, and this will determine an acceptable range for the length of the 3rd side of a triangle so that the 3rd side respects the Triangle Inequality.

Triangle Solver and Classify Triangles

Solves a triangle including area using the following solving methods

Side-Angle-Side (SAS)

Angle-Side-Angle (ASA)

Side-Side-Angle (SSA)

Side-Side-Side (SSS)

Area (A) is solved using Herons Formula

Law of Sines

Law of Cosines

Also classifies triangles based on sides and angles entered.

Side-Angle-Side (SAS)

Angle-Side-Angle (ASA)

Side-Side-Angle (SSA)

Side-Side-Side (SSS)

Area (A) is solved using Herons Formula

Law of Sines

Law of Cosines

Also classifies triangles based on sides and angles entered.

Triangular Number

This calculator determines the nth triangular number

Trichotomy Property

Demonstrates the Trichotomy Property with 2 numbers.

Trig Measurement

Given an angle θ, this calculates the following measurements:

Sin(θ) = Sine

Cos(θ) = Cosine

Tan(θ) = Tangent

Csc(θ) = Cosecant

Sec(θ) = Secant

Cot(θ) = Cotangent

Arcsin(x) = θ = Arcsine

Arccos(x) = θ = Arccosine

Arctan(x) =θ = Arctangent

Also converts between Degrees and Radians and Gradians

Coterminal Angles as well as determine if it is acute, obtuse, or right angle. For acute angles, a cofunction will be determined.

Sin(θ) = Sine

Cos(θ) = Cosine

Tan(θ) = Tangent

Csc(θ) = Cosecant

Sec(θ) = Secant

Cot(θ) = Cotangent

Arcsin(x) = θ = Arcsine

Arccos(x) = θ = Arccosine

Arctan(x) =θ = Arctangent

Also converts between Degrees and Radians and Gradians

Coterminal Angles as well as determine if it is acute, obtuse, or right angle. For acute angles, a cofunction will be determined.

Trigonometry Relations

Calculates various trigonometry measurements (sin,cos,tan,csc,sec,cot) given other measurements that you enter.

Trimmed Mean and Winsorized Mean

Given a number set and a trimmed mean percentage, this will calculate the trimmed mean (truncated mean) or winsorized mean.

Trinomials

Checks to see if equations in the trinomial form ax^{2} + bx + c are a perfect square as well as completing the square from equations in the form ax^{2} + bx + ?.

Uniform Distribution

This calculates the following items for a uniform distribution

* Probability Density Function (PDF) ƒ(x)

* Cumulative Distribution Function (CDF) F(x)

* Mean, Variance, and Standard Deviation

Calculates moment number t using the moment generating function

* Probability Density Function (PDF) ƒ(x)

* Cumulative Distribution Function (CDF) F(x)

* Mean, Variance, and Standard Deviation

Calculates moment number t using the moment generating function

Unit Cost

Calculates the unit cost based on a price and a quantity

Unit Fraction

Determines the unit fraction for a fraction.

Units of Output (Service Output) Depreciation

Given an asset value, salvage value, production units, and units per period, this calculates the depreciation per period using the units of output depreciation (service output depreciation)

Unknown Number

Determines the unknown number needed to make an equation true.

Utility and Cost Utility Ratio

Given 2 methods with a set of utilities and weights/probabilities, this will calculate the utility for each method, as well as the total utility using the additive method, as well as the Cost Utility Ratio

Variation Equations

This calculator solves the following direct variation equations and inverse variation equations below:

* y varies directly as x

* y varies inversely as x

* y varies directly as the square of x

* y varies directly as the cube of x

* y varies directly as the square root of x

* y varies inversely as the square of x

* y varies inversely as the cube of x

* y varies inversely as the square root of x

* y varies directly as x

* y varies inversely as x

* y varies directly as the square of x

* y varies directly as the cube of x

* y varies directly as the square root of x

* y varies inversely as the square of x

* y varies inversely as the cube of x

* y varies inversely as the square root of x

Vectors

Given 2 vectors A and B, this calculates:

* Length (magnitude) of A = ||A||

* Length (magnitude) of B = ||B||

* Sum of A and B = A + B (addition)

* Difference of A and B = A - B (subtraction)

* Dot Product of vectors A and B = A x B

A ÷ B (division)

* Distance between A and B = AB

* Angle between A and B = θ

* Unit Vector U of A.

* Determines the relationship between A and B to see if they are orthogonal (perpendicular), same direction, or parallel (includes parallel planes).

* Cauchy-Schwarz Inequality

* The orthogonal projection of A on to B, proj_{B}A and and the vector component of A orthogonal to B → A - proj_{B}A

Also calculates the horizontal component and vertical component of a 2-D vector.

* Length (magnitude) of A = ||A||

* Length (magnitude) of B = ||B||

* Sum of A and B = A + B (addition)

* Difference of A and B = A - B (subtraction)

* Dot Product of vectors A and B = A x B

A ÷ B (division)

* Distance between A and B = AB

* Angle between A and B = θ

* Unit Vector U of A.

* Determines the relationship between A and B to see if they are orthogonal (perpendicular), same direction, or parallel (includes parallel planes).

* Cauchy-Schwarz Inequality

* The orthogonal projection of A on to B, proj

Also calculates the horizontal component and vertical component of a 2-D vector.

Vendor Discount Effective Rate of Interest

Calculates the effective rate of interest earned from a vendor discount for a prepayment of a balance within a certain amount of days for a percentage discount

Venn Diagram (2 circles)

Given two circles A and B with an intersection piece of C, this will calculate all relevant probabilities of the Venn Diagram.

Walking Distance (Pedometer)

Given a number of steps and a distance per stride in feet, this calculator will determine how far you walk in other linear measurements.

Weight Conversions

This calculator converts between the following weight measurements:

* Ounces (oz.)

* Pounds (lb.)

* Tons

* Milligrams (mg.)

* Grams

* Kilograms (kg.)

* Centigrams (cg.)

* Micrograms (mcg.)

* Stone

* Ounces (oz.)

* Pounds (lb.)

* Tons

* Milligrams (mg.)

* Grams

* Kilograms (kg.)

* Centigrams (cg.)

* Micrograms (mcg.)

* Stone

Weighted Average Cost of Capital (WACC) and Capital Asset Pricing Model (CAPM)

Calculates the Weighted Average Cost of Capital (WACC) and also calculates the return on equity if not given using the Capital Asset Pricing Model (CAPM) using debt and other inputs such as Beta and risk free rate.

Wind Chill Factor

This calculator determines the wind chill factor given a temperature in F° and a wind speed in miles per hour (mph). Simply enter your temperature and wind speed and press the button

Woorank Certification

Exam answers and study guide for the Woorank Certification exam

Word Notation

Calculates the following:

* The word notation of a number of numeric expression

* The word notation of a number of numeric expression

Work

Solves for any of the 3 variables, Work (W), Force (F) and Distance (d) in the work formula

Work Word Problems

Given Person or Object A doing a job in (r) units of time and Person or Object B doing a job in (s) units of time, this calculates how long it would take if they combined to do the job.

Yahtzee-1st Roll

Calculates the probability of various scoring hands in the game of Yahtzee on the 1st roll of the dice.

Youngs Modulus-Stress-Strain

Calculates any of the 3 items in the Youngs Modulus equation with stress and strain.

Z Score Lookup

Given a Z-score probability statement from the list below, this will determine the probability using the normal distribution z-table.

* P(z < a)

* P(z <= a)

* P(z > a)

* P(z >= a)

* P(a < z < b)

* P(z < a)

* P(z <= a)

* P(z > a)

* P(z >= a)

* P(a < z < b)

Zero Multiplication Property

Demonstrates the Zero Multiplication property using a number.

Zero-Coupon Bond Price

This calculator calculates the price of a zero-coupon bond given a face value, yield rate, and term.

Sales Tax Question

X is a natural number greater than 6

A=2(l+w) for w

u=ak/b for a

The perimeter of a rectangle is 400 meters. The length is 15 meters less than 4 times the width. Fin

brendan sells roses for $7.99 a bunch. at the end of the day he had collected $79.90. how many bunch

2 movie tickets and 3 snacks are $24. 3 movie tickets and 4 snacks are $35. How much is a movie tick

The United States Department of Agriculture reports that 18% of Americans are now on food stamps. If

11 more then n

The product of a number and its square is less than 8

(10+x)-y=10+(x-y)

one third of the sum of 4 and P

Positive numbers less than 4

The sum of 13 and twice janelles age

Strategy then Tactics

The Devil is in the Details

8 less than x is 31

%60 of the freshman ate pizza at lunch today. If 180 freshman ate pizza, how many freshman are enro

Mr. Winkle downloaded 34 more songs than Mrs. Winkle downloaded. Together they downloaded 220 song

The length of the flag is 2 cm less than 7 times the width. The perimeter is 60cm. Find the length a

Leslie has 8 pencils. She has 9 fewer pencils than Michelle. How many pencils does Michelle have?

the square root of twice a number is 4 less than the number

What pair of consecutive integers gives the following: 7 times the smaller is less than 6 times the

3 more than the product of 7 and a number x is less than 26

All real numbers that are less than equal to -1 or greater than 5

The quotient of m and -2 is greater than 24

The product of 8 and a number k is greater than 4 and no more than 16

Updated Questions

P=15+5d/11 for d

5 more then the sum of x and y

The domain of a relation is all even negative integers greater than -9. The range y of the relation

Absolute value of x less than 8

Three more than 2x is greater than or equal to 1 and less than or equal to 11

Ruth prepares 7 kilograms of dough every hour she works at the bakery. How much dough did Ruth prepa

My son is 9 less than 1/2 my age. If I am 34 how old is my son?

298 is the same as c and 230 more

two thirds of the sum of p and 2

Three more than 2x is greater than or equal to 1 and less than or equal to 11

5 added to x is 11

Eight less then the sum of y and x

5 added to xis 11

Every 6 customers receive a soda, every 8 a hot dog there are 329 customers . how many received both

Water flows from tank A to tank B at the rate of 2 litres per minute.

Water flows from tank A to tank B at the rate of 2 litres per minute.

5 -8| -2n|=-75

10 more dogs than cows

A realtor makes an annual salary of $25000 plus a 3% commission on sales. If a realtor's salary is $

Dinh has 4 more patients to care for than Juan. if Dinah has 18 patients to care for how many does J

30 increased by 3 times the square of a number

3 pound bag for $11.25

y/2+c=d for y

Emily is three years older than twice her sister Mary’s age. The sum of their ages is less than 30.

triple the sum of y and six

thesumof9andanumber

Carmen is serving her child french fries and chicken wings for lunch today. Let f be the number of f

Suppose two number cubes are rolled. What is the probability of rolling a sum greater than 8?

Michelle and Julie sold 65 cupcakes. If Julie sold 9 more cupcakes than Michelle, how many cupcakes

There are 32 female performers in a dance recital. The ratio of men to women is 3:8. How many men ar

The length of a rectangular building is 6 feet less than 3 times the width. The perimeter is 120 fee

The sum of 5x and 2x is at least 70

There are 5 2/3 cups of milk. How many thirds are there?

The distance between X and 8 is less than 14

There are 76 milligrams of cholesterol in a 3.2 ounce serving of lobster. How much cholesterol is in

Six less than twice a number is at least -1 and at most 1

If Mr hernandez has 5 times as many students as Mr daniels and together they have 150 students how m

Selling a Business and Reinvesting Proceeds

There are 4064 calories in 8 pints of strawberry icecream. How many calories are ther in each pint o

Company a charges $25 plus $0.10 a mile. Company b charges $20 plus $0.15 per mile. How far would yo

Compute a 75% Chebyshev interval around the mean for x values and also for y values.

8 increased by the product of a number and 7 is greater than or equal to -18

Katie is twice as old as her sister Mara. The sum of their age is 24.

A dad gave his 3 sons each the same amount of money in an envelope. He took $20 from one son for get

4 teaspons of vegetable oil and 6 teaspoons of vinegar. 20 teaspoons of vegetable oil to how many te

A local shop sold 499 hamburgers and cheese burgers. There were 51 fewer cheese burgers sold. How ma

The cost of renting a rototiller is $19.50 for the first hour and $7.95 for each additional hour. Ho

g=1+2a/a

I have 6 cakes and I want to divide them between 8 people how much does each person get?

There are 113 identical plastic chips numbered 1 through 113 in a box. What is the probability of re

Triple the sum of 4 and y

You prepare 18 scoops of dog food for 6 dogs, and prepare 24 scoops of dog food for 8 dogs. What is

12.66 g of calcium are heated in air,17.73 g of calcium oxide is formed.The percent oxygen in the co

Mary spent a total of $291.94 for a party. She spent $200.29 on food, plus an additional $30.55 for

ohn read the first 114 pages of a novel, which was 3 pages less than1/3 of the novel

the sum of d and twice g

Dan has a favorite fast food restaurant where he always orders French fries and a milk shake. If the

Marcus bought w poster boards for $3 each

You had $22 to spend on 8 notebooks after buying them you had $6

the sum of n and twice n is 12

8 sweets are shared among 4 pupils. how many does each pupil get

At a birthday party, 13 children ate cake, 9 ate ice cream, 7 ate both cake and ice cream, and one c

Help

Pet supplies makes a profit of $5.50 per bag, if the store wants to make a profit of no less than $5

3 adults and 4 children must pay $136. 2 adults and 3 children must pay $97.

Help

Help

Ailyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil co

there are 120 calories in 3/4 cup serving of cereal. How many Calories are there in 6 cups of cereal

200 apples at $69.99 how much is each apple

Brighthouse charges $120 a month for their basic plan, plus $2.99 for each on demand movie you buy.

the number of students allowed on a trip cannot be greater than 85 let s represent the number of stu

Happy Paws charges $16.00 plus $1.50 per hour to keep a dog during the day. Woof Watchers charges $1

if you add 35 to twice a number, the result is 17. What is the number?

todd has a bag of 150 pieces of candy. every weekday he eats 2 pieces and 3 pieces on weekends until

a textbook store sold a combined total of 296 sociology and history text books in a week. the number

You are comparing the costs of producing shoes at two different manufacturers. Company 1 charges $5

two mechanics worked on a car. the first mechanic worked for 10 hours, and the second mechanic worke

A set of 4 consecutive integers adds up to 314. What is the least of the 4 integers?

jamie needs 3 cups of flour and 4 cups of sugar how many cups of sugar will she need if she uses 9 c

12 plus the product of 4 and a number is greater than 72

On Monday, 417 students went on a trip to the zoo. All 7 buses were filled and 4 students had to tra

In 1910, the population of math valley was 15,000. If the population is increasing at an annual rate

The sum of three consecutive integers is 42

Dan makes 11 an hour working at the local grocery store. Over the past year he has saved 137.50 towa

Brice has 1200 in the bank. He wants to save a total of 3000 by depositing 40 per week from his payc

Hans rented a truck for one day. There was a base fee of 16.95, and there was an additional charge o

The average of manny three tests is an 84. What must he get on a 4th test to raise his average to a

Dan bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of h

A softball player had 13 hits in 25 times at bat. What percent of her times at bat resulted in hits?

A company now has 4900 employees nationwide. It wishes to reduce the number of employees by 300 per

2 consecutive even integers that equal 118

You have a total of 42 math and science problems for homework. You have 10 more math problems than s

A pet supply chain called pet city has 15 hamsters and 12 gerbils for sale at its seaside location.

Sally can paint a room in 7 hours while it takes Steve 6 hours to paint the same room. How long woul

Video store movie rental plans. Plan A 25 membership fee plus 1.25 for movie. Plan B 40 for unlimite

The cost for parking at a parking garage is 2.25 plus an additional 1.50 for each hour. What is the

take away 1 from the cube of e

Marissa has 24 coins in quarters and nickels. She has 3 dollars. How many of the coins are quarters?

Suppose Briley has 10 coins in quarters and dimes and has a total of 1.45. How many of each coin doe

George has 600 baseball cards and Joy has one fifth as many baseball cards as George. How many baseb

The average of a number and double the number is 25.5

A parking meter contains 27.05 in quarters and dimes. All together there are 146 coins. How many of

Johns grade has 3 classrooms. Each classroom has 14 tables. Two students sit at each table about how

15 out of 18 students agreed. What percentage did not?

For the first 10 seconds of the ride, the height of the coaster can be determined by h(t) = 0.3t^3 -

Rachel borrowed 8000 at a rate of 10.5%, compounded monthly. Assuming she makes no payments, how muc

Brenda has already knit 4 centimeters of scarf, and can knit 1 centimeter each night. After 43 night

You collect a total of 75 in donations from three people. The three donations are in the ratio 4:4:7

Jack scored a mean of 15 points per game in his first 3 basketball games. In his 4th grade, he score

Melinda is paid 17000 per year. She is also paid a sales commission of 5% of the value of her sales.

Six ounces of canned fish in oil has 396 calories. How many calories does 1 ounce have?

Elli is purchasing 2.75 pounds of jelly beans which are priced at 4.85 per pound. How much change sh

A piece of gym equipment which cost 450 including vat last year is now selling at 500 excluding vat.

Two years of local internet service costs 685, including the installation fee of 85. What is the mon

A taxi charges a flat rate of 1.75, plus an additional 0.65 per mile. If Erica has at most 10 to spe

Probability of getting either a sum of 8 or at least one 4 in the roll of a pair dice

Foster is centering a photo that is 9/1/2 inches wide on a scrapbook pages that is 10 inches wide. H

Clara can bake 17 cookies with each scoop of flour. With two scoops of flour, how many cookies can C

Triple the sum of 7 and m

two unbiased dice are thrown. find the probability that the total number on the dice is greater than

Marty is 3 years younger than 6 times his friend Warrens age. The sum of their ages is greater than

A house valued at 70,000 in 1989 increased in value to 125,000 in 2000. Find a function which gives

3 times the difference of x and 5 is 15

the quotient of 8 and the difference of x and m

Mary paid 1.97 for toothpaste and a bar of soap using a discount coupon if the toothpaste cost 1.29

A private jet flies the same distance in 4 hours that a commercial jet flies in 2 hours. If the spee

In a given year, Houston has good air quality 48% of the days, moderate air quality 41% of the days,

Francis paid 51.12 for his dinner including tax. The cost of his dinner is 48. What percent is the t

2 times half of a number

the sum of a number divided by 8 and 3 equals 6

A sewing class has 205 yards off a bric to make quilts. Each quilt requires 7 yards off a bric. How

The difference of 100 and x is 57

4 times the sum of q and p

Liz harold has a jar in her office that contains 47 coins. Some are pennies and the rest are dimes.

Caleb earns points on his credit card that he can use towards future purchases.

Caleb earns points on his credit card that he can use towards future purchases.

A city has a population of 240,000 people. Suppose that each year the population grows by 8%. What w

the sum of 3 numbers

the sum of a number and 16 is e

Karin has 3 to spend in the arcade. The game she likes costs 50c per play. What are the possible num

raise f to the 8th power then multiply the result by g

The difference between 3 times x and 4

If 3 times a number added to 2 is divided by the number plus 4 the result is 4/3

Seven subtracted from the product of 3 and a number is greater than or equal to -26

Set C is the set of two-digit even numbers less than 56 that are divisible by 5

Blake writes 4 pages per hour. How many hours will Blake have to spend writing this week in order to

A home is to be built on a rectangular plot of land with a perimeter of 800 feet. If the length is 2

Carol gets 5 each week for allowance. She saves 1 of her allowance. What percent of her allowance do

Robert has 45 dollars. He buys 6 tshirts and has 7 dollars left over. How much did each tshirt cost?

Jenny went shoe shopping. Now she has 5 more pairs than her brother. Together they have 25 pairs. Ho

Goal is to take at least 10,000 steps per day. According to your pedometer you have walked 5,274 ste

18 divided by the difference of t and 9

multiply m by 2, then add n to the result

Amy deposits 4000 into an account that pays simple interest at a rate of 6% per year. How much inter

If 3000 is invested at an annual interest rate of 5% and compounded annually, find the balance after

At 1:00 pm you have 24 megabytes of a movie and at 1:15 you have 96 megabytes of a movie. What is th

She ordered 6 large pizzas. Luckily, she had a coupon for 3 off each pizza. If the bill came to 38.9

Dylans mother tells Dylan he must spend less time playing electronic games. On the weekends he spend

Kerry asked a bank teller to cash 390 check using 20 bills and 50 bills. If the teller gave her a to

On an algebra test, the highest grade was 42 points higher than the lowest grade. The sum of the two

If 3 pounds of apples cost 0.90, how much will 10 pounds cost?

The quotient of 49 and n squared

the sum of 3 numbers

p(t)=6t represent the number of people p(t) that a number of turkeys can feed at Thanksgiving. How m

The sum of two numbers multiplied by 9

The science club charges 4.50 per car at their car wash. Write and solve and inequality to find how

You and your friend are saving for a vacation. You start with the same amount and save for the same

Divide 10 by the difference of z and y

A certain number added to its square is 30

Subtract 12 from the square sum of w and v

Kristen and Julia went skating. Julia skated 30 minutes longer than Kristen. If Julia skated for 55

Mr. Wilson wants to park his carin a parking garage that charges 3 per hour along with a flat fee of

Joe buys 9 cds for the same price, he also buys a dvd for 20. His total bill is 119. Find the cost o

Salma purchased a prepaid phone card for 30. Long distance calls cost 9 cents a minute using this ca

A medium orange has 70 calories. This is 10 calories less then 1/4 of the calories in a sugar krunch

triple the value of c plus 3 is 84

A student walks 1500 meters to school in 30 minutes. What is their average speed in meters per minut

The ratio of men to women working for a company is 4 to 7. If there are 319 employees total, how man

10 less than half the sum of a and b

A pile of coins, consisting of quarters and half dollars, is worth 11.75. If there are 2 more quarte

1/4 of the sum of 6 and 3n

Shelby has already taken 31 quizzes during past quarters, and she expects to have 1 quiz during each

Max and Bob went to the store. Max bought 2 burgers and 2 drinks for $5.00 bob bought 3 burgers and

Nine less than the product of 2 and y is not less than 15

ax + b = cx - d

If 100 runners went with 4 bicyclists and 5 walkers, how many bicyclists would go with 20 runners an

The distribution of actual weights of 8 oz chocolate bars produced by a certain machine is normal wi

There are 13 animals in the barn. some are chickens and some are pigs. there are 40 legs in all. How

Marcela is having a presidential debate watching party with all of her friends, She will be making c

$6500 is 7/10 of a number. What is the number

Diego is jogging at a rate of 5mi/h. A function relates how far Deigo jogs to his rate of speed.

The club uses the function S(t) = -4,500t + 54,000 to determine the salvage S(t) of a fertilizer ble

What is the probability of rolling 12, 5 times in a row?

David obtained 5 out of 20 votes in the election. What percentage of the votes did david receive?

Kevin and randy have a jar containing 41 coins, all of which are either quarters or nickels. The tot

There are 2 consecutive integers. Twice the first increased by the second yields 16. What are the nu

Every 100 seeds of corn he plants, he harvests 84 ears of corn. If he wants to harvest 7200 ears of

k equals the sum of h and 23

A student has an average mark of 68 from 10 tests. What mark must be gained in the next test to rais

is 6x a monomial?

Connor bought 386.21 pounds of peanuts and 331.28 pounds of raisins. How many pounds of snacks did h

Select 6 bills from a combination of 5 different bills

Jake used 5 boxes to pack 43.5 kg of books. If the boxes each weighed the same and held 8 books, wh

365 subtracted from the quantity q times 146 is the same as w

A salesperson drove 9 hours. How long will he have driven t hours later?

geometric mean of 6 and 24

Yesterday, Boris had 144 baseball cards. Today, he got m more. Using m, write an expression for the

If 5000 dollars is invested in a bank account at an interest rate of 10 per cent per year, find the

Two numbers total 83 and have a difference of 17 find the two numbers

raise v to the 9th power, then dividethe result by u

Ina has $40 in her bank account and saves $8 a week. Ree has $200 in her bank account and spends $12

A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years. Wha

Lilly has 10 peices of fruit. 5 of them are pears the rest are apples how many apples does she have?

A coupon that was mailed to preferred customers of video village rentals is good for 15% on any vide

Michael is riding his bicycle. He rides 25.6 kilometers in 4 hours. What is his speed?

Maria bought 7 boxes. A week later half of all her boxes were destroyed in a fire. There are now onl

In 2000 a company increased its workforce by 50%. In 2001 it decreased its workforce by 50%. How doe

raise y to the 10th power, then find the quotient of the result and 2

Ava set her watch 2 seconds behind, every day it sets back 1 second. How many days has it been since

add x and 3; then multiply by y

One number is 4 times the other number

The basketball team is selling candy as a fundraiser. A regular candy bar cost 0.75 and a king sized

the sum of a number and itself is 8

When 20 is subtracted from 3 times a certain number, the result is 43

v equals 66 decreased by d

Two Step equation word problems.

Two Step equation word problems.

175 students separated into n classes is 25

Find Mean 106 and standard deviation 10 of the sample mean which is 25

Find Mean and standard deviation

Find Mean and standard deviation

3 times larger than the sum of 4 and 9

Find Mean 106 and standard deviation 10 of the sample mean which is 25

In how many ways can I arrange the 7 letters A, B, C, D, E, F, G?

Ten subtracted from the product of 9 and a number is less than ?24

students at East Central High School earned $384 selling car washes. They want to make $2690 for a c

When Ms. Thelma turned on her oven, the temperature inside was 70 degrees F. The temperature began t

Find 3 Even Integers with a sum of 198

the sum of x and 3 is divided by 2

triple the sum of b and c

raise 3 to the 8th power, then divide the result by t

As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at l

there are some red counters and some yellow counters in the ratio 1:5. There are 20 yellow counters

The product 18 And q

Add 2 and z, then subtract y from the result

At a football game, a vender sold a combined total of 117 sodas and hot dogs. The number of hot dogs

7 subtracted from x cubed

the cube of t is less than 12

The sales price s of a pair of shoes plus 4% sales tax

6 mph, 2 hours what is the distance

10 times a number is 420

H minus 6 all cubed

14 is the what of 1/14?

26 students 15 like vanilla 16 like chocolate. 3 do not like either flavour. How many like both vani

A baseball player gets 12 hits in 40 at bats. What percent are hits, and what percent are not hits?

132 is 393 multiplied by y

The population of goats on a particular nature reserve t years after the initial population was sett

6 times the sum of a number and 5 is 16

the sum of X and 3 is divided by 2

The sum of x and y is at most 10

the sum of 5 times p and 10

the sum of twice a and b

let x be the variable, an age that is at least 57 years old

10 minus z to the 8th

A sample of 71 college students yields a mean annual income of $3595. Assuming that ? = $898, find t

based on a sample of size 41, a 95% confidence interval for the mean score of all students,µ, on an

The monthly earnings of a group of business students are are normally distributed with a standard de

find the value of ? that corresponds to a confidence level of 86.5

30 people are selected randomly from a certain town. If their mean age is 60.5 and ? = 4.6, find a 9

The principal randomly selected six students to take an aptitude test. Their scores were: 87.4 86.9

Find the confidence interval specified.

Find Requested Value

The principal randomly selected six students to take an aptitude test. Their scores were: 87.4 86.9

based on a sample of size 41, a 95% confidence interval for the mean score of all students,µ, on an

add c to d, then multiply 9 by the result

A test has twenty questions worth 100 points . The test consist of true/false questions worth 3 poin

s = tu^2 for u

The cost of tuition at Johnson Community College is $160 per credit hour. Each student also has to p

Solve Problem

Solve the problem

Solve Problem

Find Necessary Sample Size

Find Requested Confidence Value

the set of natural numbers less than 7 that are divisible by 3

A sample of 71 college students yields a mean annual income of $3595. Assuming that ? = $898, find t

The monthly earnings of a group of business students are are normally distributed with a standard de

data below consists of the pulse rates (in beats per minute) of 32 students. Assuming ? = 10.66,

standard deviation of 545 dollars. Find the sample size needed to have a confidence level of 95% and

standard deviation of 545 dollars. Find the sample size needed to have a confidence level of 95% and

The monthly earnings of a group of business students are are normally distributed with a standard de

2 dice are rolled what is the probability that doubles are rolled less than 11

Juan spent at most $2.50 on apples and oranges. He bought 5 apples at $0.36 each. What is the most h

add 4 to the sum of 5 and z

Austin has 15 CDs, which is 3 less than his sister has. How many CDs does his sister have?

An oil tank contains 220.2 gallons of oil......

A store sells about $45 a day 7 days a week about how many gigs is my the stores sell in 4 weeks

-3x<= -9 or 5+x<6

the sum of a number times 3 and 30 is less than 17

I have 8 cookies. My friend at 7/10 of the 8 cookies. How many cookies did he have.

-2 <= x +4 < 9

5 times the total of 60 and x

d is h decreased by 301

If a person invests $360 In an account that pays 8% interests compounded annually, find the balance

3 pack of bouncy balls for $0.96 or 9 pack of bouncy balls for $3.15

x is smaller than 9 and greater than 4

Translate this sentence into an equation. 43 is the sum of 17 and Gregs age. Use the variable g to

divide 8 by 9, then subtract t

Subtract b from the sum of a and 10

Mr rosenthal bought 15 computer disks and a carrying case for 28.50 if the carrying case cost 6.75 w

You need to hire a catering company to serve meals to guests at a wedding reception. Company A charg

if a + b = 2 and a2 - b2 = -4, what is the value of a - b?

An experienced accountant can balance the books twice as fast as a new accountant. Working together

thrice the sum of x y and z

A package of cookies cost $4.00 it has 20 cookies how much does each cookie cost?

How many dimes must be added to a bag of 200 nickels so that the average value of the coins in the b

During the 2016 christmas season,UPS had 14 employees retire, 122 employees were hired and 31 left d

Computers R US was selling laptops that had 4GB of memory for $495. You can buy additional memory fo

A woman dies at the age of 100 and her son is 35 years old how old was she when she gave birth to hi

Isabel will run less than 36 minutes today. So far, she has run 22 minutes. What are the possible nu

Jennifer spent $11.25 on ingredients for cookies shes making for the school bake sale. How many cook

Sarah has 12 apples she divided them in 4 groups. How many are in each group?

The square of a positive integer minus twice its consecutive integer is equal to 22. find the intege

A random sample of 40 adults with no children under the age of 18 years results in a mean daily leis

1/3 of the sum of 4 and p

An employee earns $7.00 an hour for the first 35 hours worked in a week and $10.50 for any hours ove

You invest $1,300 in an account that has an annual interest rate of 5%, compounded annually. How muc

Calculate the simple interest if the principal is 1500 at a rate of 7% for 3 years

Mr. Jimenez has a pool behind his house that needs to be fenced in. The backyard is an odd quadrilat

Balls numbered 1 to 10 are placed in a bag. Two of the balls are drawn out at random. Find the proba

Austin deposited $4000 into an account with 4.8% interest,compounded monthly. Assuming that no

Use the definite integral to find the area between the x-axis and the function f(x)= x^2-x-12 over t

N reduced by 2 is the same as Z increased by 7

Translate this sentence into an equation. The difference of Maliks age and 15 is 63 Use the variable

Jamie spent $15.36 on several items at the store. he spent an equal amount on each item. if jamie sp

Kelsey wants to buy a new video game. He has a $50 gift card and wants to spend less than $20 of

add the sum of 9 and q to r

A bicycle helmet is priced at $18.50. If it is on sale for 10% off and there is 7% sales tax, how mu

a hypothesis test is to be performed.Determine the null and alternative hypotheses.

evaluate 16 raised to 1/4

HELP SOLVE

HELP SOLVE

HELP SOLVE

HELP SOLVE

The product of two positive numbers is 96. Determine the two numbers if one is 4 more than the other

HELP SOLVE

HELP SOLVE

HELP SOLVE

Translate this sentence into an equation. 48 is the difference of Ritas age and 11 . Use the variabl

Given g(a)=a² - 2a - 1 and f(x)=x² - 2x, Find: a) f(a+2)-f(a)/2 b) g(a+h)-g(a)/h

Rental canoes cost $30 plus $5 per house of use. Which expression gives the cost of renting a canoe

A shopper paid $51.93 including tax for an item marked $48.99. What would she pay for another item m

double n, multiply answer by 3

A 6000 seat theater has tickets for sale at $24 and $40. How many tickets should be sold at each pri

Add h and 7, then triple the result

Theodore invests $17,000 at 9% simple interest for 1 year. How much is in the account at the end of

Renee sells 6 gifts in 20 minutes. How many might she sell in 4 hrs

You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to

Pablo is saving money to buy a game. So far he has saved $22, which is one-half of the total cost

Yosemite National Park charges $7 per person for an all day admission to the park. The total cost fo

In the bank you will find $24. 3/4 of it is quarters. How much money is that?

The sum of x and twice y

Charlie buys a 40 pound bag of cat food. His cat eats a 1/2 pound of food per day.

There are 63 students in middle school chorus. There are 11 more boys than girls. How many boys x an

the sum of 3 numbers a, b, and c

writing and solving equations

writing and solving equations

Tickets for a concert were priced at $8 for students and $10 for nonstudents. There were 1340 ticket

The fastest student in gym class runs 50 meters in 7.4 seconds. The slowest time in the class was 4.

a group of students and teachers are going on a field trip. one ninth of the group will fit on 1/3 o

I bought four candles that cost 7.00, 8.00, 9.00, and 20.00. If I have a budget of $50, how much can

In order to select new board members, the French club held an election. 63 out of the 90 members of

the number of minutes in h hours and 32 minutes

X is not between 6 and 12

A box is filled with 5 blue cards,2 red cards, and 5 yellow cards. A card is chosen at random from t

The cost of a field trip is $220 plus $7 per student. If the school can spend at most $500, how many

The perimeter of a rectangular field is 250 yards. If the length of the field is 69 yards, what is

Jack is making snack bags. He has 18 baby carrots and 42 pretzels. He wants to divide them equally a

Jack bought 7 tickets for a movie. He paid $7 for each adult ticket and $4 for each child ticket. Ja

Amy has n decks of cards. Each deck has 52 cards in it. Using n, write an expression for the total

Juan has d dimes and q quarters in his pocket. The total value of the coins is less than $14.75. Whi

Together Sarah and Jasmine have collected 37 bugs. If Sarah collected 18 bugs, how many did Jasmine

A laptop is purchased for $1700. After each year, the resale value decreases by 25%. What will be th

A taxi charges a flat rate of $1.50 with an additional charge of $0.80 per mile. Samantha wants to s

Shalini gave 0.4 of her plums to her brother and 20% to her sister. She kept 16 for herself. How man

Bridget can grow 6 flowers with every seed packet. With 4 seed packets, how many total flowers can B

Geocache puzzle help

A TV that usually sells for $192.94 is on sale for 15% off. If sales tax on the TV is 6%, what is th

Geocache puzzle help

Q is 5% less than P

Geocache puzzle help

Geocache puzzle help

Geocache puzzle help

Geocache puzzle help

Geocache puzzle help

What is the sum of a number x and y raised to the power of two in algebraic expression

Geocache puzzle help

Geocache puzzle help

Geocache puzzle help

When 9 is subtracted from 5 times a number, the result is 31

24 coloring books, 60 crayons, and 84 markers can be packaged into at most how many identical packag

Divide 17 by g. Then, subtract 9.

the square of the sum of p and 5

Whitney has already baked 2 cakes, and she can bake 1 cake with each additional stick of butter she

Blake and Tatsu are each assigned a paper for a class they share. Blake decides to write 4 pages at

225 lines per second how many per minute

the quotient of the cube of a number x and 5

the sum of 3 consecutive natural numbers, the first of which is n

You borrowed $25 from your friend. You paid him back in full after 6 months. He charged $2 for inter

A man left a warehouse at 9:00 a.m. and travels 150 km to reach his home. What is the speed if he a

Notebooks cost $1.39 each. What are the possible numbers of notebooks that can be purchased with $10

Which of the following is NOT TRUE about the distribution for averages?

A typical adult has an average IQ score of 105 with a standard deviation of 20. If 20 randomly selec

Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed wit

Facebook provides a variety of statistics on its Web site that detail the growth and popularity of t

Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed wit

Height and weight are two measurements used to track a child's development. TheWorld Health Organiza

The patient recovery time from a particular surgical procedure is normally distributed with a mean o

Assume the speed of vehicles along a stretch of I-10 has an approximately normal distribution with a

A group of students at a school takes a history test. The distribution is normal with a mean of 25,

The singular form of the word "dice" is "die". Tom was throwing a six-sided die. The first time he t

Jennie and Alex both wanted to get a free ticket for a College Music concert. However, the concert s

If you throw a die for two times, what is the probability that you will get a one on the first throw

A toy factory makes 5,000 teddy bears per day. The supervisor randomly selects 10 teddy bears from a

Imagine that the diabetic test accurately indicates the disease in 95% of the people who have it. Wh

Which of the following is the probability that subjects do not have the disease, but the test result

You choose an alpha level of .01 and then analyze your data.

(a) What is the probability that

u more than the quotient of 8 and 5

An ice cream shop carries 6 ice cream flavors, 3 sauces, and 4 toppings. If a sundae has one scoop o

A company makes a puzzle that is made of 53 small plastic cubes. The puzzles are shipped in boxes th

The total cost of producing x units for which the fixed costs are $2900 and the cost per unit is $25

A bag contains 3 red marbles and 4 blue marbles. a marble is taken at random and replaced. another m

The sales price of a new compact disc player is $210 at a local discount store. At the store where t

Kunio puts $2,200.00 into savings bonds that pay a simple interest rate of 2.4%. How much money will

A group of 4 adults and 5 children is visiting an amusement park. Admission is $15 per adult and $9

Below are data showing the results of six subjects on a memory test. The three scores per subject ar

Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the pho

Cole and Finn are roommates. They paid three months rent and a $200 security deposit when they signe

Given that P (A)=0.6, P (B)=0.5, P (A|B) = 0.2, P (C|A)= 0.3 and P (C|B)=0.4. (1) If they are depe

Of all smokers in particular district, 40% prefer brand A and 60% prefer brand B. Of those who prefe

Consider a firm that has two assembly lines, 1 and 2, both producing calculator. Assume that you hav

Consider the case of a manufacturer who has an automatic machine that produces an important part. Pa

Eighty percent of the employees at Rowan University have their biweekly Wages deposit directly to th

Suppose that previously collected traffic data indicate that, during the afternoon rush hour, an ave

Customers arrive at the claims counter at the rate of 20 per hour (Poisson distributed). What is th

An analysis of the final test scores for Managerial Decision Making Tools reveals the scores follow

It is estimated that weekly demand for gasoline at new station is normally distributed, with an aver

The hourly wages of employees at Rowan have a mean wage rate of $10 per hour with a standard deviati

A financial analyst computed the ROI for all companies listed on the NYSE. She found that the mean o

A candidate for mayor wants to gauge potential voter reaction to an increase recreational services b

Suppose that the manager of the Commerce Bank at Glassboro determines that 40% of all depositors hav

A random sample of 144 with a mean of 100 and a standard deviation of 70 is known from a population

A random sample of n = 10 flash light batteries with a mean operating life X=5 hr. And a sample stan

The NJ state education department finds that in a random sample of 100 persons who attended college,

Suppose a firm producing light bulbs wants to know if it can claim that its light bulbs it produces

A firm wants to know with a 98% level of confidence if it can claim that the boxes of detergent it s

A Government antipollution spokeperson asserts that more than 80% of the plants in the Glassboro are

A researcher believed that there was a difference in the amount of time boys and girls at 7th grade

A professor assumed there was a correlation between the amount of hours people were expose to sunlig

Conventionally, the null hypothesis is false if the probability value is: a. Greater than 0.05 b. L

A teacher hypothesized that in her class, grades of girls on a chemistry test were the same as grade

Which of the following could reduce the rate of Type I error? a. Making the significant level from

___is the probability of a Type II error; and ___ is the probability of correctly rejecting a false

A student hypothesized that girls in his class had the same blood pressure levels as boys. The proba

When you conduct a hypothesis testing, at which of the following P-value, you feel more confident to

A student posed a null hypothesis that during the month of September, the mean daily temperature of

If the P-value of a hypothesis test is 0.40, you conclude a. You accept the null hypothesis b. You r

A teacher assumed that the average of grades for a math test was 80. Imagine 20 students took the te

Which of the following descriptions of confidence interval is correct? (Select all that apply) a. I

If a statistical test result is not significant at the 0.05 level, then we can conclude: a. It is no

Which of the following descriptions of null hypothesis are correct? (Select all that apply) a. A nu

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine a researcher posed a null hypothesis that in a certain community, the average energy expendi

Compared to the normal distribution, the t distribution has ___ values at the top and ___ at the tai

In order to test if there is a difference between means from two populations, which of following ass

A researcher posed a null hypothesis that there was no significant difference between boys and girls

A researcher posed a null hypothesis that there was no significant difference between boys and girls

A researcher posed a null hypothesis that there was no significant difference between boys and girls

Which of the following involves making pairwise comparisons? a. Comparing the standard deviation of

A professor wants to test all possible pairwise comparisons among three means. If we need to maintai

Which of the followings can increase the value of t? (select all the apply) a. Increase the standar

Imagine a researcher wanted to test the effect of the new drug on reducing blood pressure. In this s

Which of the followings is the definition of power? a. Power is the probability of rejecting a null

The probability of failing to reject a false null hypothesis is ____

If power is big, you can assume:

If the probability that you will correctly reject a false null hypothesis is 0.80 at 0.05 significan

As the sample size increases, we assume:

Which of the following can increase power?

Can a coefficient of determination be negative? Why or why not?

Determine whether the random variable is discrete or continuous. In each case, state the possible v

A binomial probability experient is conducted with the given parameters. Compute the probability of

Determine the area under the standard normal curve that lies between:

Determine ux and sigma(x) from the given parameters of the population and sample size u = 76, sigma

Construct a confidence interval of the population proportion at the given level of confidence. x = 1

Six Years ago, 12.2% of registered births were to teenage mothers. A sociologist believes that the

A random sample of 40 adults with no children under the age of 18 years results in a mean daily leis

The first significant digit in any number must be 1, 2, 3, 4, 5, 6, 7, 8, or 9. It was discovered t

Write a model that utilizes all three explanatory variables with no interaction or quadratic terms.

True or False (a) The normal distribution curve is always symmetric to its mean. (b) If the variance

A random sample of 25 customers was chosen in CCP MiniMart between 3:00 and 4:00 PM on a Friday afte

A random sample of STAT200 weekly study times in hours is as follows: 2 15 15 18 30 Find the sam

A fair coin is tossed 4 times. a) How many outcomes are there in the sample space? b) What is the pr

There are 1000 juniors in a college. Among the 1000 juniors, 200 students are taking STAT200, and 10

CCP Stat Club is sending a delegate of 2 members to attend the 2015 Joint Statistical Meeting in Sea

Prizes hidden on a game board with 10 spaces. One prize is worth $100, another is worth $50, and tw

Mimi just started her tennis class three weeks ago. On average, she is able to return 20% of her opp

The IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a) What i

A random sample of 100 light bulbs has a mean lifetime of 3000 hours. Assume that the population sta

Rearrange the following equation to make x the subject, and select the correct rearrangement from th

A man stands at point p, 45 metres from the base of a building that is 20 metres high. Find the angl

How many palindromes are between 700 and 800?

Suppose that Sn = 3 + 1/3 + 1/9 + ... + 1/3(n-2)

You can afford monthly deposits of $270 into an account that pays 3.0% compounded monthly. How long

What is the annual nominal rate compounded daily for a bond that has an annual yield of 5.4%? Round

If you buy a computer directly from the manufacturer for $3,509 and agree to repay it in 36 equal in

You have $250,000 in an IRA (Individual Retirement Account) at the time you retire. You have the op

Find the elements on the principal diagonal of matrix B

From a standard 52 card deck, how many 6-card hands will have 2 spades and 4 hearts?

Determine if the statement below is True or False

If 13,754 people voted for a politician in his first election, 15,420 voted for him in his second el

A bag contains 10 red balls, 10 green balls and 6 white balls. Two balls are drawn at random from th

T-shirts sell for $19.97 and cost $14.02 to produce. Which equation represents p, the profit, in ter

Jazmin is a hairdresser who rents a station in a salon for daily fee. The amount of money (m) Jazmin

A box contains 22 red apples and 3 green apples. Three apples are selected at random, one after the

Ms. Jeffers is splitting $975 among her three sons. If the oldest gets twice as much as the youngest

In simple linear regression the slope and the correlation coefficient will have the same signs True

The coefficient of determination is found by taking the square root of the coefficient of correlatio

If the correlation between two variables is close to minus one, the association is: Strong Moderate

What can we conclude if the coefficient of determination is 0.94?

What is the range of possible values for a coefficient of correlation?

Assume that you make random guesses for 5 true-or-false questions

A high school with 1000 students offers two foreign language courses : French and Japanese. There ar

Men's heights are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. Mimi

True or False: The standard deviation of the chi-square distribution is twice the mean.

If you are running 6 miles per hour, then it takes you 10 minutes to run 1 mile. If you are running

Let P(n) and S(n) denote the product and the sum, respectively, of the digits of the integer n. For

A woman walked for 5 hours, first along a level road, then up a hill, and then she turned around and

A farmer is taking her eggs to the market in a cart, but she hits a pothole, which knocks over all

Jack and Jill have a magic pail of beans. The number of beans in the pail doubles every second. If

Given the rectangular prism below, if AB = 6 in., AD = 8 in. and BF = 24, find the length of FD.

Julia has a bucket of water that weighs 10lbs. The total weight is 99% water. She leaves the bucke

Take a look at the following sums: 1 = 1 1 + 3 = 4 1 + 3 + 5 = 9 1 + 3 + 5 + 7 = 16 1 + 3 + 5 + 7 +

Lucy has taken four tests in math class and has an average of 85. i. What score would she have to g

Sophie and Claire are having a foot race. Claire is given a 100-foot head-start. If Sophie is runn

An ancient Greek was said to have lived 1/4 of his live as a boy, 1/5 as a youth, 1/3 as a man, and

If f(x) = 3x + 1 and g(x) = x^2 + 2x, find x when f(g(x)) = 10

Sound travels about 340 m/s. The function d(t) = 340t give the distance d(t),in meters., that sound

The sum of the digits of a certain two-digit number is 16. Reversing its digits increases the number

Lena purchased a prepaid phone card for $15. Long distance calls cost 24 cents a minute using this

Chris, Alex and Jesse are all siblings in the same family. Alex is 5 years older than chris. Jesse i

A taxi charges a flat rate of $1.50 with an additional charge of $0.80 per mile. Samantha wants to s

Two mechanics worked on a car. the first mechanic worked for 5 hours snd the second mechanic worked

At the end of the day, a bakery had 1/2 of a pie left over. The 4 employees each took home the same

There are 480 calories per hour. An officer swims 1.5 hours for 30 days. How many calories is that?

Harry got 42 out of 49 correct in his test. What fraction of the marks did he get correct?

a manufacturing company has a debt to equity ratio of 3 to 2. if the company has a debt of $12 milli

Gayle has 36 coins, all nickels and dimes, worth $2.40. How many dimes does she have?

At a local fitness center, members pay a $10 membership fee and $3 for each aerobics class. Nonme

The weight of water is approximately 2 pounds 3 ounces per litre. How much will 8 litres of water we

The difference of 2 positive numbers is 54. The quotient obtained on dividing the 1 by the other is

The product of x and u is not greater than 21

4 times a number cubed decreased by 7

The sales tax for an item was $21.50 and it cost $430 before tax. Find the sales tax rate. Write you

Blanca works as a salesperson and earns a base salary of $72 per week plus a commission of 12% of al

Lunch meat A is 10.00 for 2 lbs or meat B for 6.00 for 1lb

You start reading on page 342 and end on 531. How many pages did you read?

Ali spent $60 at the grocery store. Of this amount, he spent $51 on fruit. What percentage of the to

A skydiver falls 144 feet in three seconds. How far does the skydiver fall per second?

The next number in the series is 2,5,11,20,32,47, is

Jim works for his dad and earns $400 every week plus $22 for every chair (c) he sells. Write an equa

A $750 television is on sale for 30% off. There is a 7% sales tax on the television. How much do you

Martin buys b books at £10 each what is the total cost

Mimis math class starts at 9:00 A.M. and lasts for 1 hour and 55 minutes. After math class, Mimi has

The slope of a line is 7/6. What is the slope of any line parallel to this line?

the number of minutes in h hours and 49 minutes

The relief time provided by a standard dose of a popular children’s allergy medicine averages 7.9

A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit

The margarita is one of the most common tequila-based cocktails, made with tequila, triple sec, and

M decreased by the sum of 13 and the number P is less than 12

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time pe

k increased by the sum of 3 and j

A mail courier charges a base fee of $4.95 plus $11.90 per package being delivered. If x represents

If you multiply me by 33 and subtract 20, the result is 46. Who am I?

Jason wrote a total of 8 pages over 2 hours. How many hours will Jason have to spend writing this we

Round 12.4263 to the nearest cent

Erica has $14 and plans to save $5 each week until she has the $64 she needs for a new jacket. Par

Alice is making a sandwich to pack in her lunch. She has 2 different kinds of bread, 3 cheeses, 4 lu

A television sells for $750. Instead of paying the total amount at the time of the purchase, the sam

You purchase a car for $23,000. The car depreciates at a rate of 15% per year. Determine the value

The basketball coach bought 8 new basketballs for 2$ each. The baseball coach bought 8 new baseballs

The sum of x and y doubled

A cell phone costs $20 for 400 minutes and $2 for each extra minute. Gina uses 408 minutes. How m

You started this year with $491 saved and you continue to save an additional $11 per month. Write an

After a 33 percent reduction, you purchase a television for $281.40. What was the televisions price

In a family of 4 children, what is the probability that all four will be girls?

Yael worked out at a gym for 2 hours. Her workout consisted of stretching for 21 minutes,jogging for

if the point (.53,y) is on the unit circle in quadrant 1, what is the value of y?

Your salary after a 9% salary increase if your salary before the increase was s

A yoga member ship costs $16 and additional $7 per class. Write a linear equation modeling the cost

Lisa has 32 nickels this is one third of her coins how many coins does she have

Shen buys a pack of 9 towels for $24.30. Find the unit price in dollars per towel.

A house has 8 rooms one quarter of the rooms are bedrooms how many of the rooms are bedrooms

Julia owes 18.20 for the month of November. Her plan costs 9.00 for the first 600 text messages and

An executive invests $23,000, some at 8% and some at 4% annual interest. If he receives an annual re

10 times the square of a number w divided by 12

A textbook store sold a combined total of 307 biology and chemistry textbooks in a week. The number

How much do 10 pieces of candy cost if 1000 pieces cost 100.00?

Scientists are studying a cell that divides in half every 15 minutes. How many cells will there by a

M is the set of integers that are greater than or equal to -1 and less than or equal to 2

John read the first 114 pages of a novel, which was 3 pages less than 1/3

The teacher is handing out note cards to her students. She gave 20 note cards to the first student,

Raise q to the 5th power, then find the quotient of the result and r

Find y if the line through (1,y) and (4,5) has a slope of 3

The coach of a hockey team is holding tryouts and can take only 2 more players for the team. There a

f(x)=a(b)^x and we know that f(3)=17 and f(7)=3156. what is the value of b

Juan has d dimes and q quarters in his pocket. The total value of the coins is less than $14.75. Whi

Add b and 9, then add c to the result

Dave rented a limousine for his wife's birthday. The hourly rate is $60. They used the limousine for

It costs a $20 flat fee to rent a lawn mower, plus $5 a day starting with the first day. Let x repre

At a local fitness center, members pay an $8 membership fee and $3 for each aerobics class. Nonmembe

In a newspaper, it was reported that yearly robberies in Springfield were up 40% to 77 in 2012 from

Hari planted 324 plants in such a way that there were as many rows of plants as there were number of

What number when multiplied by four exceeds itself by 42?

You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet.

A shipping service charges $0.43 for the first ounce and $0.29 for each additional ounce of package

A desk drawer contains 10 blue pencils, 7 red pencils, and 8 green pencils. Without looking, you dra

p(x)=2x-5 find the domain

A passenger train left station A at 6:00 P.M. Moving with the average speed 45 mph, it arrived at st

A parabola has a Vertex at (4,-2) and a Focus at (6,-2). Find the equation of the parabola

If Jody had $3 more she would have twice as much as Lars together they have $60

The sum of 9 and victors age is 55

Each carton of juice holds 750 millilitres. There are 24 cartons in each box. How much juice is ther

In how many ways can a committee consisting of 4 faculty members and 5 students be formed if there a

If a number is increased by 16 and then divided by 3, the result is 8

A jet plane traveling at 550 mph over takes a propeller plane traveling at 150 mph that had a 3 hour

Country A produces about 7 times the amount of diamonds in carats produce in Country B. If the total

The area of a desert in Africa is 12 times the area of a desert in Asia. If the area of a desert in

A recent survey showed that 49% of recent college graduates named flexible hours as their most desir

The sum of 6 times a number and -8, added to 3 times a number

Substitute the given values into given formula and solve for the unknown variable. S=4LW + 2 WH; S=

To make an international telephone call, you need the code for the country you are calling. The code

A 20 feet piece of string is cut into two pieces so that the longer piece is 5 feet longer than twic

The product of x and 7 is not greater than 21

Two fifths of the sum of 8 and b

4 less than the sum of 7 and 5

The square of the difference of a number and 4

Last month, a parking lot had 23 spaces in each of its rows. Recently, the lost was expanded, and 4

A pawn broker buys a tv and a computer for $600. He sells the computer at a markup of 30% and the tv

The Lakers recently scored 81 points. Their points came from 2 and 3 point baskets. If they made 39

69 divided by the sum of 10 and y

Larry Mitchell invested part of his $31,000 advance at 6% annual simple interest and the rest at 7%

A recent survey showed that 44% of recent college graduates named flexible hours as their most desir

A 15 feet piece of string is cut into two pieces so that the longer piece is 3 feet longer than twic

A theatre contains 459 seats and the ticket prices for a recent play were $53 for adults and $16 for

A used automobile dealership recently reduced the price of a used compact car by 6%. If the price of

Write the verbal expression for: 9x

Write the verbal expression for: 9x

At Sams Club, 32 cans of Coke cost a total of $8.96. What is the cost per can?

Roberto has taken 17 photos photos are placed on each odd number page and the newspaper has 10 pages

The difference of twice a number and 9 is less than 22

the sum of b cubed and five

the cost of x concert tickets if one concert ticket costs $97

A tractor tire has a radius of 24 inches. If the tire rotates one time around, about how many inches

Susie bought 15 pairs of shoes last year for an avarage of 30$ per pair. She sold each pair for 1/3

sqrt(12)sqrt(6)/sqrt(8)

Write an expression for the amount of money in p pennies plus 7 dollars.

2 buses leave at 5:30am, 1 comes every 18 minutes and one comes every 15 minutes when will they both

raise x to the 10th power, then divide b by the result

Write a system of equations to describe the situation below, solve using any method, and fill in the

Coach vega orders 30 bats for the team. He orders 7 oak, 7 maple, 12 ash bats, and and some bamboo b

In this class of 4/5 students are right handed. if there are 20 right handed students, what is the t

A trench is 40 feet long and the trencher goes 2 feet per minute. How long does it take to dig the

Kim, Jenny, and Wendy are basketball players. Each plays a different position (guard, forward, and c

Bills car rental charges a base fee of 50$ and then $0.20 per mile

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Raise p to the 5th power, then triple the result

CHEBYSHEVS THEOREM TELLS US THAT WHAT PERCENTAGE LIES BETWEEN 2.25 STANDARD DEVIATIONS?

Jinas final exam has true/false questions, worth 3 points each, and multiple choice questions, worth

Sales tax is currently 9.1%. Write an algebraic expression to represent the total amount paid for an

You throw two dice. The red dice is fair but on the blue dice the probability of a 1=15%, probabilit

A family buys airline tickets online. Each ticket costs $167. The family buys travel insurance with

Your bill for dinner, including a 7.25% sales tax, was $49.95. You want to leave a 15% tip on the co

Set C is the set of two-digit even numbers greater than 72 that do not contain the digit 8.

Arnie bought some bagels at 20 cents each. He ate 4, and sold the rest at 30 cents each. His profit

Emil bought a camera for $268.26, including tax. He made a down payment of $12.00 and paid the balan

Linda takes classes at both Westside Community College and Pinewood Community College. At Westside,

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many s

The number of days in t weeks and 5 days

Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes and how many quarters does he

the sum of 3 consecutive natural numbers, the first of which is n

Translate the sentence into an inequality. Twice y is less than 21.

The sum of a number b and 3 is greater than 4 and no more than 16

The ratio of girls to boys is 14 girls to 12 boys. If there are 6 boys, how many girls are there?

if 9 times a number is decreased by 6, the result is 111

the sum of 16 squared and a number x

The tax on 1 dollar is 7 cents. What is the tax on 5 dollars?

the cost of x pounds of pork at $4.10 a pound

There are 6 women and 5 men in a department. How many ways can a committee of 2 women and 2 men be s

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Your salary after a 5% increase if your salary before the increase was s

raise the difference of 8 and v to the 7th power

Lucas has nickels,dimes,and quarters in the ratio 1:3:2. If 10 of Lucas coins are quarters, how many

Subtract 7 from p, then multiply 5 by the result

Penelope and Owen work at a furniture store. Penelope is paid $215 per week plus 3.5% of her total s

A standard die is rolled. Find the probability that the number rolled is greater than 3

The Oakdale High School Speech and Debate Club hosted its annual car wash fundraiser. Each club memb

Finance

Finance

Aaron bought a bagel and 3 muffins for $7.25. Bea bought a bagel and 2 muffins for $6. How much is b

Is it correct to word "10% * 50 + 50" as "10% upper 50"?

Is it correct to word "10% * 50 + 50" as "10% upper 50"?

There are 64 members in the history club. 11 less than half of the members are girls. How many membe

Is it correct to word "10% * 50 + 50" as "10% upper 50"?

Given that E[Y]=2 and Var [Y] =3, find E[(2Y + 1)^2]

if a train travels at 80 mph for 15 mins, what is the distance traveled?

The cost of x textbooks if one textbook costs $140

A box

A box contains 4 plain pencils and 4 pens. A second box contains 5 color pencils and 3 crayons. One

A used automobile dealership recently reduced the price of a used compact car by 6%. If the price of

Is it correct to word "10% * 50 + 50" as "10% upper 50"?

The points 6,4 and 9,r lie on a line with slope 3. Find the missing coordinate r.

The points -5, -24 and 5,r lie on a line with slope 4. Find the missing coordinate r. Slope = (y2 -

David roller skates for 3 1/3 hours with a constant speed of 24 km/h and then for another 1 hour 10

Two consecutive even integers that equal 126

You and two friends share 7 cookies equally. How many cookies do you each get?

A person places $230 in an investment account earning an annual rate of 6.8%, compounded continuousl

Equation 2y+5x=40. Interprt the intercepts

The quotient of x and 5 decreased by 7

Carl is taking a math test. There are 10 questions which take 30 seconds each; 15 questions which ta

The price p of a gym’s membership is $30 for an enrollment fee and $12 per week w to be a member. W

If 7 movie tickets cost $63 what is the unit price of the movie tickets?

14 oranges $3.78

Find the velocity of a cheetah that runs 100m in 4 seconds

Suppose x is a natural number. When you divide x by 7 you get a quotient of q and a remainder of 6.

A jar contains 80 nickels and dimes worth $6.40. How many of each kind of coin are in the jar?

A ball is dropped from a height of 12 feet and returns to a height that is one-half of the height fr

Roger has 9 white buttons. He has 3 fewer brown buttons than white buttons. Roger has 3 more gray bu

If f(x) = 3 - 2x and g(x) = 1/x + 5 what is the value of (f/g)(8)?

b more points than 75

p decreased by 65 is the same as the total of f and 194

Bangladesh, a country about the size of the state of Iowa, but has about half the U.S population, ab

Two numbers have a sum of 20. If one number is p, express the other in terms of p.

A rational expression is undefined when what is 0?

The ratio of men to women working for a company is 3 to 4. If there are 81 men working for the compa

A companys cost function is C(x) = 16x2 + 900 dollars, where x is the number of units. Find th

Rachel deposits $6000 into an account that pays simple interest at a rate of 6% per year. How much i

A postcard is 4 inches tall and 5 inches wide. What is its area?

A family is renting an apartment. For 2007, the rent is $1376 per month. The monthly rent in 2007

A house costs 3.5 times as much as the lot. Together they sold for $135,000. Find the cost of each

Updates:

If p+4=2 and q-3=2, what is the value of qp?

Matilda needs at least $112 to buy an new dress. She has already saved $40. She earns $9 an hour bab

Translate this sentence into an equation. 49 is the difference of Diegos age and 17. Use the variabl

You have read 100 pages of a 250 book. You have 3 days left to finish the book. How many pages will

Xavier has $132 to buy a video game. Each game costs $12. Write an equation to find the number of ga

Stephanie and her sister go bowling every weekend and have been keeping track of their wins for the

Diana earns $8.50 working as a lifeguard. Write an equation to find Dianas money earned m for any nu

54 is the sum of 15 and Vidyas score

all real numbers y greater than or equal to 12

Sections of a rail way are 66m in length. What is the length of 81 placed to end to end?

Time and Distance

When an alligator is born it is about 8 inches long each year they grow 12 inches determine the age

Time and Distance

The quotient of the quantity of x plus y and 3

Time and Distance

If the max time that John can spend on Client A ($20/hr) in one week is 32 hours, and the min time i

A construction company needs to remove 24 tons of dirt from a construction site. They can remove 3/8

the sum of 16 and twice julies savings use the variable j to represent julies savings

24 students in a class took an algebra test and 19 of them earned a B or better. What percent of stu

Eric is taking a trip of 245 miles. If he has traveled x miles, represent the remainder of the trip

The admission fee at an amusement park is $1.50 for children and $4.00 for adults. On a certain day,

The property taxes on a house were $810. What was the tax rate if the house was valued at $90,000

Find four consecutive odd numbers which add to 64

please answer this word problem

please answer my second word problem

please solve the third word problem

please solve the fourth word problem

please solve the fifth word problem

please answer this word problem

please solve the third word problem

please solve the fourth word problem

please solve the fifth word problem

A blue die and a green die are rolled. Find the probability that the blue and green are both less th

Norwood High Schools jazz band includes 33 trombone players and 27 trumpet players. Meanwhile, Lakew

There are 4 people at a party. Each person brings one gift for each other person. What is the total

When a number is doubled, the result is 36

Pedro has r red peppers and 44 green peppers. Write an expression that shows how many peppers Pedro

A cube is 1 meter long.What is the total length of all its edges?

When a number is doubled, the result is 36

Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in ga

In 2010 a algebra book cost $125. In 2015 the book cost $205. Whats the linear function since 2010?

A coat is on sale for 35% off. The regular price of the coat is p. Write and simplify and expression

A plumber charges $50 to visit a house plus $40 for every hour of work.

porportion problems

porportion problems

Math Written Assignment

One third of the bagels in a bakery are sesame bagels. There are 72 sesame bagels.

Translate this phrase into an algebraic expression. 58 decreased by twice Gails age. Use the variabl

Math Written Assignment

Math Written Assignment

$2,030.00 was invested at 10% per annum compounded annually. What interest has been earned (in dolla

Translate to an inequality. The cost is smaller than $94,000

John spent $10.40 on 5 notebooks and 5 pens. Ariana spent $7.00 on 4 notebooks and 2 pens. What is t

Math Written Assignment

Math Written Assignment

Olga wrote all the natural numbers from 1 to k. Including 1 and k. How many numbers did she write?

The function P(x) = -30x^2 + 360x + 785 models the profit, P(x), earned by a theatre owner on the ba

Math Written Assignment

A lead pipe 20 ft long is 3/8 inch thick and has an inner diameter of 3 inches. Find the volume of l

There are 11 kids at a birthday party. If there are 6 girls and 5 boys at the party, what fraction o

A grocery store sells 6 pounds of apples for $12. What is the unit price of the apples?

In a shipment of 330 animals, 125 were hogs, 68 were sheep, and the rest were cattle. Find the numbe

64 divided by the cube of y

Estimate a 15% tip on a dinner bell of $49.76 by first round the bill amount to the nearest $10

A car is purchased for $24,000 . Each year it loses 30% of its value. After how many years will t

Juan runs out of gas in a city. He walks 30yards west and then 16 yards south looking for a gas stat

Sam needs to save $300 to buy a video game system. He is able to save $20 per week. How many weeks w

Kierra had $35 to spend at the movies. If it was $11 to get in and snacks were 2$ each, how many sna

A city has a population of 240,000 people. Suppose that each year the population grows by 7.25%. Wha

A salesperson receives a base salary of $300 per week and a commission of 15% on all sales over $5,0

Rita has spent $16 so far on gifts. The additional amount she will spend will be less than $14. What

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes

The blue star publishing company produces daily "Star news". It costs $1200 per day to operate regar

A farmer has 165 feet of fencing material in which to enclose a rectangular grazing area. He wants t

If sales tax is currently 8.2%, write an algebraic expression representing the amount of sales tax y

An item cost $370 before tax, and the sales tax is 25.90 what is the percentage?

On the math test, Ralph answered 17 out of 20 problems. What percent did he get right?

Diegos savings increased by 9 is 68 . Use the variable to represent Diegos savings.

A car is bought for $2400 and sold one year later $1440 find the loss as a percentage of the cost pr

You split $1,500 between two savings accounts. Account A pays 5% annual interest and Account B pays

A group of scientists studied the effect of a chemical on various strains of bacteria. Strain A star

A traveler is walking on a moving walkway in an airport. the traveler must walk back on the walkway

963 animals on a farm, 159 sheep and 406 cows and pigs. How many are pigs?

Translate this phrase into an algebraic expression. 57 decreased by twice Mais savings Use the varia

You pay 510.00 to rent a storage unit for 3 months the total cost includes an initial deposit plus a

the sum of 2 times a number and -2, added to 4 times a number

The weight of a 9.5-inch by 6-inch paperback book published by Leaden Publications, Inc., is 16.2 oz

A bag contains 3 white balls and 2 black balls. Another bag contains 2 white and 4 black balls. A ba

Cody invests $4,734 in a retirement account with a fixed annual interest rate of 4% compounded conti

Ann purchased 8 packs of grape gum, 12 packs of cherry gum, and 6 packs of strawberry gum. If there

A cell phone plan charges $1.25 for the first 400 minutes and $0.25 for each additional minute, x. W

There are 4 fewer peaches than lemons on a table. If there are x lemons, how many peaches are there?

Yolanda runs each lap in 7 minutes. She will run less than 35 minutes today. What are the possible n

add s and 2 then subtract 4

There are 12 eggs in a dozen. Write an algebraic expression for the number of eggs in d dozen.

Age now problems

if a^b=x and c^b=y then xy=?

Company A rents copy machines for $300 a month plus $0.05 per copy. Company B charges $600 plus $0.0

Age now problems

Age now problems

Every 10 customers receive a soda. Every 9 customers receive a hot dog. There are 450 customers. How

The sum of a number and its square is 72. find the numbers?

Solve for x

Age now problems

Claire makes bracelets using blue and red beads.Each bracelet has 20 red beads and 5 blue beads.Writ

b bags of beans there are 7 beans in each bag

Dave has a savings account that pays interest at 3 1/2% per year. His opening balance for May was $1

Find the number of combinations and the number of permutations for 10 objects taken 6 at a time

Vanessa is packing her bags for her vacation. She has 5 unique action figures, but only 3 fit in her

You and 6 friends went out for pizza. When the total amount was split, each person paid $3. How much

If you buy 5 packages of noodles at $1.48 each whats the total?

Alonzo needs to buy some pencils. Brand A has a pack of 36 pencils for $8.52. Brand B has a pack of

The length of a rectangular building is 6 feet less than 3 times the width. The perimeter is 120 fee

A jug holds 1.2 litres of orange juice. All of the juice is poured equally into six glasses. How muc

5 chocolates cost $25. What will 15 chocolates cost?

Following the birth of triplets, the grandparents deposit $30,000 in a college trust fund that earns

Carlos age increased by is 16 is 62

A sum of money doubles in 20 years on simple interest. It will get triple at the same rate in: a.

What number is half between 1.24 and 1.8?

2x^2+4x < 3x+6

Mr. Smith wants to spend less than $125 at a zoo. A ticket cost $7 he is taking 2 kids with him. Use

Oliver earns $50 per day plus $7.50 for each package he delivers. If his paycheck for the first day

2 times the sum of 1 and some number is 30. What is the number?

Binominal Probability

The sum of 2 numbers is 70. The difference of these numbers is 24. Write and solve a system of equat

Binominal Probability

g less than 143 is equal to 39 reduced by w

A national political party has a budget of $30,000,000 to spend on the inauguration of the new presi

Triangle with perimeter

Word Problem

The jimenez family inherited land that was purchased for $50,000 in 1967. The value of the land incr

What is the probability that a month chosen at random has less than 31 days?

If you triple a number and then add 10, you get one-half of the original number. What is the number

A man is four times as old as his son. In five years time he will be three times as old. Find their

The sum of the squares of two consecutive positive integers is 61. Find these two numbers.

Potato chips were $29.26 for 7 bags.Brand B was $25.38 for 6 bags which is the better buy

n times 146, reduced by 94 is the same as h

The perpendicular height of a right-angled triangle is 70 mm longer than the base. Find the perimete

Ronald scored 4 goals in his first soccer game. He then scored the same amount of goals in his next

Shalini gave 0.4 of her plums to her brother and 20% to her sister. She kept 16 for herself how many

60 is the sum of 22 and Helenas height. Use the variable h to represent Helenas height.

Age now and then

Yesterday, Kareem had n baseball cards. Today, he got 9 more. Using n, write an expression for the t

Hope it's okay to ask this here?

Hope it's okay to ask this here?

59 is the difference of vanessas height and 20

A baseball player gets 7 hits in the first 15 games of the season. If he continues hitting at the sa

Age now and then

Age now and then

Age now and then

There are 12 inches per foot. How many inches are there in 14 feet?

Age now and then

Two numbers total 50 and have a difference of 28. Find the two numbers.

if x2 is added to x, the sum is 42

52 card deck what is the probability of being dealt a two

Beth made a trip to the train station and back. On the trip there she traveled 45 km/h and on the re

Of the 800 students of a school, 600 have traveled. What percentage of the students went on a trip?

There are two bells in the school. Bell A rings every 2 minutes. Bell B rings every 3 minutes. If bo

How many wheels would 9 tricycles have?

If there are 7 bolts in a widget and 6 widgets in an appliance, how many bolts are in 20 appliances?

Frank is a plumber who charges a $35 service charge and $15 per hour for his plumbing services. Find

80 people 40% were women 12 were children. How many men?

Sean is helping his dad build a tiled walkway in their backyard. The walkway will be 606060 feet lon

A coin is tossed and a die is rolled. Find the probability pf getting a head and a number greater th

Sean is helping his dad build a tiled walkway in their backyard. The walkway will be 606060 feet lon

What is the simple interest accrued from a $500 investment at 7% interest for 5 years?

A ship is traveling at an average velocity of 28 miles per hour. How far will the ship travel in two

On a Friday evening a pizza shop had orders for 4 pepperoni, 97 vegetable, and 335 cheese pizzas. If

The average cost of printing a book in a publishing company is c(x) = 5.5x+kx, where x is the numbe

The length of a rectangular building is 6 feet less than 3 times the width. The perimeter is 120 fee

The set of months that contain less than 30 days

A plain chocolate bar weights 40 grams. It contains 12 grams of fat. A milk chocolate bar is 30 gram

Besides 8 and 1, what is one factor of 8

Match each variable with a variable by placing the correct letter on each line.

A wildlife reserve has a population of 180 elephants. A group of researchers trapped 60 elephants an

The perimeter of a rectangular bakery is 204 feet. It is 66 feet long. How wide is it?

Success in a binomial event is .15 what is the probability of failure?

If one half of a number is 24, what is twice the number?

A town has a population of 12000 and grows at 5% every year. What will be the population after 12 ye

Which of the following is the probability that a green marble will be selected from a bag containing

Kendra has $5.70 in quarters and nickels. If she has 12 more quarters than nickels, how many of each

You have read a 247 page book for a class and decide to read 18 pages a night. How many pages are le

Stock A is worth 4.5. Stock B is worth 8.0. Stock C is worth 10.0. She purchased half as many shares

Problems Involving Rational Expressions

Problems Involving Rational Expressions

To convert from Celsius to Fahrenheit, multiply by 1.8 and add 32. Write a formula to describe this

HomeWork Help Please Respond ASAP!!!

The Sum of three times a number and 18 is -39. Find the number

1/4 of the sum of n and 40

The value of 3 times the quantity of 4 + x is greater than 6 less than x.

A pair of dice is cast. what is the probablitly that the sum is less than 5

At a certain university, 60% of the students enrolled in a math course, 50% are enrolled in an Engli

A segment has an endpoint at (2, 1). The midpoint is at (5, 1). What are the coordinates of the othe

3x over 27 equals 2x minus 2 over 15

The sum of the measures of two exterior angles of a triangle is 205. What is the measure of the thir

Four more then double a number is greater than 2

John took 20,000 out of his retirement and reinvested it. He earned 4% for one investment and 5% on

Adam, Bethany, and Carla own a painting company. To paint a particular home, Adam estimates it woul

A city has a population of 260,000 people. Suppose that each year the population grows by 8.75% . W

add 8 and 10 then divide u

Tom has a collection 21 CDs and Nita has a collection of 14 CDs. Tom is adding 3 cds a month to his

A is the set of odd integers between 4 and 12

The cost of hiring a car for a day is $60 plus 0.25 cents per kilometer. Michelle travels 750 kilome

A quarter of the learners in a class have blond hair and two thirds have brown hair. The rest of the

subtract q from r, then subtract 6 from the result

add 3 and 9, then multiply n by the result

Math Problem Solving (Help Please)

If the ratio of private school students to public school students in a city is 4 to 15 and there is

Is this algebra?

Is this algebra?

Math Problem Solving (Help Please)

HomeWork Help Please Respond ASAP!!!

A parking lot has sixty-eight parking spaces numbered from 1 to 68. There are no cars in the parking

A sprinter runs 400 meters in 54 seconds. What is the runners average running rate in meters per sec

Last year, Miguel had $10,000 to invest. He invested some of it in an account that paid 5% simpl

A manufacturer has a monthly fixed cost of $52,500 and a production cost of $8 for each unit produce

There is a stack of 10 cards, each given a different number from 1 to 10. suppose we select a card r

Last year, Manuel had $10,000 to invest. He invested some of it in an account that paid 7% simple in

A brand new car that is originally valued at $25,000 depreciates by 8% per year. What is the value o

Serial numbers for a product are to made using 4 letters followed by 4 numbers. If the letters are t

If the original price of an item was $30.00 and Joan only paid $24.00 for it, what percentage discou

There are 35 peanuts in every bowl. How many peanuts are there in 5 bowls? How about in 7 bowls?

The set of all odd numbers between 10 and 30

A hypothetical population consists of eight individuals ages 14,15,17,20,26,27,28, and 30 years. Wh

The sum of 3 consecutive natural numbers, the first of which is n

Students stuff envelopes for extra money. Their initial cost to obtain the information for the job w

A farmer sold 250 of his sheep, bought 35 and then bought 68. If he now has 190, how many did he beg

A dormitory manager buys 38 bed sheets and 61 towels for $791.50. The manager get another 54 bed she

If 12 times a number is added to twice the number, the result is 112

During a performance, a juggler tosses one ball straight upward while continuing to juggle three oth

There are 35 peanuts in every bowl. How many peanuts are there in 5 bowls? How about in 7 bowls?

You are offered two different sales jobs. The first company offers a straight commission of 6% of th

Small pizzas were $3 and large pizzas were $5. To feed the throng, it was necessary to spend $475 fo

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes

The sum of two consecutive integers plus 18 is 123

log5 = 0.699, log2 = 0.301. Use these values to evaluate log40

1/2 of x and 10 is 30. Find the x.

Alvin is 12 years younger than Elga. The sum of their ages is 60 . What is Elgas age?

The lowest score that is greater than 25% of the scores

A boa constrictor is 18 inches long at birth and grows 8 inches per year. Write an equation that rep

What is the probability of drawing an ace from a deck of 52 cards?

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Sarah’s house has 5 stories. If the first story has 10 windows, and the following stories have one l

A person will devote 31 years to be sleeping and watching tv. The number of years sleeping will exce

You roll two six-sided dice. What is the probability that the sum is less than 13?

A = {1, 3, 5, 7, 9} B = {2, 4, 6, 8, 10} C = {1, 5, 6, 7, 9} A ? (B ? C) =

Suppose that you have just purchased a car for $40,000. Historically, the car depreciates by 8% each

A grandmother deposited $5,000 in an account that pays 8% per year compounded annually when her gran

Leifs rich uncle decided to give him $1.00 the first day of Christmas and to double the amount each

There are 5 red and 4 black balls in a box. If you pick out 2 balls without replacement, what is the

A boy spent one-half of his money for a book and one-third of his money for a pen. The remaining $2.

Need help quickly! My math skills are escaping me!

In 2016 the geese population was at 750. the geese population is expected to grow at a rate of 12% e

The cost to rent a boat is $10. There is also charge of $2 for each person. Which expresion represen

A movie started at 11:28 am and it ended at 2:49 pm. How long was the movie?

1 integer is 7 times another. If the product of the 2 integers is 448, then find the integers.

A scuba diver swam 96ft under the sea and then went back up 34ft. What is the depth of the diver at

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Updates:

can someone help me with how to work out this word problem?

Updates:

The sum of 5 odd consecutive numbers is 145

can someone help me with how to work out this word problem?

The sum of Juan’s age and Sara’s age is 33 yrs. If Sara is 15 yrs old, how old is Juan?

A cellular phone company charges a $49.99 monthly fee for 600 free minutes. Each additional minute c

You are buying boxes of cookies at a bakery. Each box of cookies costs $4. In the equation below, c

If a+b=16, then what is 3a+3b=

You deposit $2000 in an account that earns simple interest at an annual rate of 4%. How long must yo

An executive invests $21,000, some at 8% and the rest at 7% annual interest. If he receives an annua

Your brother has $2000 saved for a vacation. His airplane ticket is $637. Write and solve an inequal

An executive invests $29,000, some at 8% and the rest at 6% annual interest. If he receives an annua

A skier is trying to decide whether or not to buy a season ski pass. A daily pass costs $75. A seas

The price of a baseball glove is no more than $38.95

Yolanda had 9 cookies in a jar. She then bought 6 bags of 13 cookies each. How many cookies does she

Julie is making a documentary about how Boxerville residents see their town. If she talks to 7 peopl

Ina school, out of 300 students, 70% are girls and 30% are boys. if 30 girls leave and no new boy is

Sally made 8 more shots then k

The revenue for selling x candles is given by f(x)=12x. The teams profit is $40 less than 80% of the

Melissa runs a landscaping business. She has equipment and fuel expenses of $264 per month. If she c

A 5L juice container has 3.6L of juice left. What percentage has been used?

Yolanda is riding her bicycle. She rides for 5 hours at a speed of 12.5 kilometers per hours. For ho

The cost to rent a construction crane is 450 per day plus 150 per hour. What is the maximum number o

Edna plans to treat her boyfriend Curt to dinner for his birthday. The costs of their date options a

A group of workers can plant 72 acres in 8 days what is the rate in acres per a day

kevin saw the hit movie at the theater on sunday. On Monday, Kevin told 4 friends about the movie. T

An ordinary fair die is rolled twice. The face value of the rolls is added together. Compute the pro

A=a+b+c+d÷4 for c

Flight is $295 and car rental is $39 a day, if a competition charges $320 and $33 a day car rental,

Twice x increased by the cube of y equals z

Help on problem

Your clothes washer stopped working during the spin cycle and you need to get a person in to fix the

Help on problem

Solving word problems with the matrix method?

Solving word problems with the matrix method?

If you paid $2.95 for 2.5 pounds of apples,what was the cost per pound?

The holy bible contains 525 pages. A believer reads 10 pages during weekends and 15 pages during wee

Par on a golf course is 72. If a golfer shot rounds of 74, 70, and 71 in a tournament, what will she

the length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width

M deck of cards . Each deck has 52 cards . The total number of cards

Name the property shown. 6 + 5 + 84 = 84 + 5 + 6

I have 20 bills consisting of $5 and $10. If the total amount of my money is $130, how many of each

Find the odd number less than 100 that is divisible by 9, and when divided by 10 has a remainder of

An alligators tail length, T, varies directly as its body length, B. An alligator with a body length

In Super Bowl XXXV, the total number of points scored was 41. The winning team outscored the losing

You are given a choice of taking the simple interest on $100,000 invested for 5 years at a rate of 2

Sara opened an account with $800 and withdrew $20 per week. Jordan opened an account with $500 and d

Sharon is 17 years old. The sum of the ages of Sharon and John is 70

Levi invested $630 in an account paying an interest rate of 4.6% compounded daily. Assuming no depos

Suppose $10000 is invested in a savings account paying 8% interest per year, after 5 years how much

How many distinct 3 letter arrangements can be made using P, R, I, M and E

The cost of X pounds of cheese or $6.75 a pound

A book publishing company has fixed costs of $180,000 and a variable cost of $25 per book. The books

The store is selling apples for $0.49 per pound. Write a function to model the cost of "p" pounds of

36 PAGES AND IT 3/8CM THICK, WHAT IS THE THICKNESS OF 1 PAGE?

Mindy and troy combined ate 9 pieces of the wedding cake. Mindy ate 3 pieces of cake troy had 1/4 of

The sum is greater than 7, the sum is divisible by 2

Ning prepared 16 kilograms of dough after working 4 hours. How many hours did Ning work if he prepar

population MEAN OF ENVIRONMENTAL SPECIALIST SALARY IS $62000.A RANDOM SAMPLE OF 45 SPECIALIST IS DRA

A soft drink costs $1.65, and each refill for the drink costs $0.95. If you have $4.50, how many ref

Two numbers have a sum of 59. If one number is q, express the other number on terms of q

Ellen reads 23 pages in 40 minutes. Rob reads 9 pages in 16 minutes. Who is the faster reader? Ju

can someone help me with how to work out this word problem?

A business owner spent $4000 for a computer and software. For bookkeeping purposes, he needs to post

If 2 ounces goes into 100 gallons how many ounces is needed for 3000 gallons

The noise level of an ambulance siren is 10 decibels louder than that of a car horn. If d represents

John read the first 114 pages of a novel, which was 3 pages less than 1/3 of the novel.

Benny had 119 dollars to spend on 9 books. After buying them he had 11 dollars. How much did each bo

A family has 4 children. Give the sample space in regards to the genders of the children

Stacy sells art prints for $12 each. Her expenses are $2.50 per print, plus $38 for equipment. How m

if you have a bag with 7 red balls in it and 3 yellow balls in it, whats the probability of pulling

A rectangular garden is 5 ft longer than it is wide. Its area is 546 ft2. What are its dimensions?

A helicopter rose vertically 300 m and then flew west 400 m how far was the helicopter from it’s sta

The theater can hold 250 people 50 seats are empty how many people are there

A straight road to the top of a hill is 2500 feet long and makes an angle of 12 degrees with the hor

A movie theater has a seating capacity of 143. The theater charges $5.00 for children, $7.00 for stu

A dress is on sale for $33. This is 3/5 of the regular price. What is the regular price?

If ben recently paid a $3.77 fine for a book that was 13 days late, what is the daily fine?

Joel bought 88 books. Some books cost $13 each and some cost $17 each. In all, he spent $128. Which

The ratio of adults to children at the beach is 4:3. If there are a total of 56 people how many are

In a newspaper, it was reported that yearly robberies in Springfield were up 34% to 134 in 2011 from

Glen got 48 out of 64 correct in his test. What fraction of the marks did he get wrong? Give your a

Kaitlin is a software saleswoman. Let y represent her total pay (in dollars). Let x represent the nu

Dotty McGinnis starts up a small business manufacturing bobble-head figures of famous soccer players

A class is made up of 6 boys and 12 girls. Half of the girls wear glasses. A student is selected at

There are 2 piles of papers on a desk. Each pile has the same number of papers. There are 12 papers

A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 poin

Jose has scored 556 points on his math tests so far this semester. To get an A for the semester, he

The circle has an arc measure of 180 degrees

At 7:00 AM, the temperature started dropping 1 degree Celsius per hour until it reached 30 degrees C

A wide receiver sprints at a speed of 8.6 feet per second. How many feet would he expect the wide re

Robert and Robert go to the movie theater and purchase refreshments for their friends. Robert spend

The slope of a roof is called its pitch. The Parthenon, an ancient Greek temple, has a roof with a r

Carly grew 50 plants with 25 seed packets. With 37 seed packets, how many total plants can Carly hav

Krutika was thinking of a number. Krutika doubles it and adds 8.7 to get an answer of 64.9. Form an

When 3 consecutive positive integers are multiplied, the product is 16 times the sum of the 3 intege

Happy Paws charges $19.00 plus $5.50 per hour to keep a dog during the day. Woof Watchers charges $1

There is a ratio of 5 girls to 3 boys in the chorus. There are 24 boys in the chorus.How many girls

Lucas is offered either 15% or $21 off his total shopping bill. How much would have to be spent to m

9000 dollars is placed in an account with an annual interest rate of 8%. How much will be in the acc

Number of cents in q quarters is 275

As a salesperson, Lauren earns a base salary of $94 per week plus a commission of 10% of sales. If s

A wood screw advances 1/16 inch for each complete turn. How far will the screw advance in 8 complete

There are 8 lions, 4 tigers, 5 cheetahs, 6 giraffes, 7 hippos, and 78 monkeys at the City Zoo. If ea

Word Problem Help

Word Problem Help

Word Problem Help

Trump stamps sold at $1.25 and Obama stamps sold at $2 . How many of each stamp was sold if 700 stam

A spinner is divided into 4 equal sections numbered 1 to 4. The theoretical probability of the spinn

Tiffany is 59 years old. The sum of the ages of Tiffany and Maria is 91. How old is Maria?

The ratio of men to women working for a company is 5 to 3 . If there are 75 men working for the

63 oranges is shared among 3 boys in the ratio of 2:3:4 how many oranges will the second boy receive

devaughn,sageis2timessydneysage,thesumoftheiragesis78,whatissydneysage

Annuity that pays 6.6% compounded monthly. If $950 is deposited into this annuity every month, how m

In 2016, National Textile installed a new textile machine in one of its factories at a cost of $300,

A gardener wants to fence a circular garden of diameter 21cm. Find the length of the rope he needs t

4 rectangular strips of wood, each 30 cm long and 3 cm wide, are arranged to form the outer section

If approximately 68% of the scores lie between 40.7 and 59.9, then the approximate value of the sta

Ashley age is 2 times Johns age. The sum of their ages is 63. What is Johns age?

I need help for this question. Can someone pls help me?

Cathy wants to buy a gym membership. One gym has a $150 joining fee and costs $35 per month. Another