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π Digits

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

3 unknowns using Cramers Rule

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

4 unknowns using Cramers Rule

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

Additive Inverse Property

Demonstrates the Additive Inverse property using a number.

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.

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.

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.

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

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.

Benchmark Fractions

Adds or Subtracts or Compares 2 fractions using estimating sums or estimating differences with benchmark fractions.

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

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 Option Pricing Model

This shows all 2^{t} scenarios for a stock option price on a binomial tree using (u) as an uptick percentage and (d) as a downtick percentage

Black-Scholes

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

Blackjack Card Counting

This calculator allows you to enter a number of players with one deck of cards by simulating an opening blackjack deal using card counting methods.

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.

Bretschneiders Formula

Calculates the area of a quadrilateral using Bretschneiders Formula

Capitalized Cost and Periodic Charge

Given an Asset Value (A), a Salvage Value (S) at time (N), a sinking fund rate of (j), an effective rate of interest (i), and maintenance expense (M), this calculator solves for periodic charge (H) and capitalized cost (K)

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

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.

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

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.

Collatz Conjecture

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

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

Commutative Property

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

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.

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.

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.

Critical Z-values

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

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.

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.

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

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.

Diophantine Equations

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

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.

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.

Duplication and Mediation

Multiplies two numbers using Duplication and Mediation

Encryption

Encrypts various strings using methods such as:

md2

md4

md5

sha1

sha256

sha384

sha512

ripemd128

ripemd160

ripemd256

ripemd320

whirlpool

tiger128,3

tiger160,3

tiger192,3

tiger128,4

tiger160,4

tiger192,4

snefru

gost

adler32

crc32

crc32b

haval128,3

haval160,3

haval192,3

haval224,3

haval256,3

haval128,4

haval160,4

haval192,4

haval224,4

haval256,4

haval128,5

haval160,5

haval192,5

haval224,5

haval256,5

md2

md4

md5

sha1

sha256

sha384

sha512

ripemd128

ripemd160

ripemd256

ripemd320

whirlpool

tiger128,3

tiger160,3

tiger192,3

tiger128,4

tiger160,4

tiger192,4

snefru

gost

adler32

crc32

crc32b

haval128,3

haval160,3

haval192,3

haval224,3

haval256,3

haval128,4

haval160,4

haval192,4

haval224,4

haval256,4

haval128,5

haval160,5

haval192,5

haval224,5

haval256,5

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)

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)

Exponential Identity

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

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

FIFO and LIFO

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

Fishers Exact Test

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

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 Distribution Table

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

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.

GDP Deflator

Calculates the GDP Deflator using nominal and real GDP

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

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Google Shopping Advertising Exam Certification Answers and Study Guide

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

Group Combinations

Given an original group of certain types of member, this determines how many groups/teams can be formed using a certain condition.

Hyperbolic Function

Calculates hyperbolic function values:
sinh, cosh, tanh, csch, sech, coth

Hyperbolic Inverse

Calculates hyperbolic function values:
arcsinh, arccosh, arctanh, arccsch, arcsech, arccoth

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.

Input Table

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

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

Lagrange Four Square Theorem (Bachet Conjecture)

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

Linear Congruential Generator

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

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

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

Missing Average

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

Modular Exponentiation and Successive Squaring

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

* Modular Exponentiation

* Successive Squaring

* Modular Exponentiation

* Successive Squaring

Multiplication Array

This allows you to enter pictorials using * symbols to represent multiplication

Multiplicative Identity Property

Demonstrates the Multiplicative Identity property using a number.

Multiplicative Inverse Property

Demonstrates the Multiplicative Inverse property using a number.

Newton Method

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

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 Bonds

Adds or subtracts 2 numbers and using grouping by 10 or 100. Also called number bonds or addition facts. Multiplies two numbers using tape diagrams.

Order of Operations

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

Partial Quotient

Divides 2 numbers using the Partial Quotient

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.

Percentiles

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

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

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

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.

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

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.

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.

Reflexive Property

Demonstrates the reflexive property of congruence using a number.

Regrouping

Subtracts two numbers using regrouping

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.

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.

Run Length Encoding

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

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.

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

Sinking Funds

Solves for Sinking Fund Deposit or Initial Loan Amount.

Straight Line Depreciation

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

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)

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.

Tetrahedron Marble Problem

Word problem using marbles in a cylinder jar that forms a tetrahedron.

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

Transitive Property

Demonstrates the Transitive property using a number.

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.

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.

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 Savings

A discount and savings word problem using 2 people and full prices versus discount prices.

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)

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

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.

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.

The sum of a and d is

A=2(l+w) for w

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

a fever is generally considered to be a body temperature greater than 100 F. You friend has a temper

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

You can buy 8 DVDs for $48,how many can you buy for 96$

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

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

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

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

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

Eight less then the sum of y and x

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

5 -8| -2n|=-75

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

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

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?

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

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

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

Set C contains all counting numbers less than 20

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

Cara learns to perform 2 vocal pieces during each week of lessons. After 7 weeks of voice lessons, h

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

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

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

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

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

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

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

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

eana paid $5 for 20 lbs of bananas. how much were each pound?

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 -

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

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

Donna buys a bag of 11 oranges for 2.86. Find the unit price in dollars per orange.

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

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

If it takes 6.6 pounds of seed to plant one acre of grass, how many acres can be planted with 9.24 p

50 meters in 21.81 seconds

the sum of 3 numbers

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

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

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

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

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

A certain number added to its square is 30

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

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

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

If you can buy one of pineapple chunks for $2 then how many can you buy with $10

Susan has 10 apples and 6 oranges. How many fruits does she have?

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

165cm in ft

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

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

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

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

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

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

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

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

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

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

If it takes 3/4 cup of flour to make 10 pancakes, how much flour will it take to make 40 pancakes

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

Find 3 Even Integers with a sum of 198

What does $10.00 worth of 0.25 cents tickets how many would you get

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

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

6 mph, 2 hours what is the distance

Is 5 over 3 equivalent to 9 over 6?

3 coins fall out of your pocket. What is the probability that all 3 will land tails up?

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

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

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

Find Requested Value

Find Necessary Sample Size

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

-2 <= x +4 < 9

Mr rosenthal bought 15 computer disks and a carrying case for 28.50 if the carrying case cost 6.75 w

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

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

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

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

evaluate 16 raised to 1/4

HELP SOLVE

The product of two positive numbers is 96. Determine the two numbers if one is 4 more than the other

A shopper paid $51.93 including tax for an item marked $48.99. What would she pay for another item m

How much more expensive per ounce is a 15 ounce bottle of mango juice for $3.45 than a 32 ounce bott

How many ways can you rolls two dice and get a sum less than 4?

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

In order to select new board members, the French club held an election. 63 out of the 90 members of

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

Amy has n decks of cards. Each deck has 52 cards in it. Using n, write an expression for the total

Geocache puzzle help

Geocache puzzle help

Geocache puzzle help

24 coloring books, 60 crayons, and 84 markers can be packaged into at most how many identical packag

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

Which of the following is NOT TRUE about the distribution for averages?

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

Assume the speed of vehicles along a stretch of I-10 has an approximately normal distribution with a

The singular form of the word "dice" is "die". Tom was throwing a six-sided die. The first time he t

Frank averages 1 strike for every 4 frames that he bowls. If he bowled 48 strikes in 1 season, how m

An ice cream shop carries 6 ice cream flavors, 3 sauces, and 4 toppings. If a sundae has one scoop o

A bag contains 3 red marbles and 4 blue marbles. a marble is taken at random and replaced. another m

Kunio puts $2,200.00 into savings bonds that pay a simple interest rate of 2.4%. How much money will

Below are data showing the results of six subjects on a memory test. The three scores per subject ar

Cole and Finn are roommates. They paid three months rent and a $200 security deposit when they signe

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

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 student hypothesized that girls in his class had the same blood pressure levels as boys. The proba

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 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

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 professor wanted to test all possible pairwise comparisons among six means. How many comparisons d

Which of the following can increase power?

Can a coefficient of determination be negative? Why or why not?

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:

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

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

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

A man stands at point p, 45 metres from the base of a building that is 20 metres high. Find the angl

Suppose that Sn = 3 + 1/3 + 1/9 + ... + 1/3(n-2)

If you buy a computer directly from the manufacturer for $3,509 and agree to repay it in 36 equal in

From a standard 52 card deck, how many 6-card hands will have 2 spades and 4 hearts?

Jazmin is a hairdresser who rents a station in a salon for daily fee. The amount of money (m) Jazmin

Ms. Jeffers is splitting $975 among her three sons. If the oldest gets twice as much as the youngest

Assume that you make random guesses for 5 true-or-false questions

Men's heights are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. Mimi

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

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

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

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

Two mechanics worked on a car. the first mechanic worked for 5 hours snd the second mechanic worked

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?

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

Jason wrote a total of 8 pages over 2 hours. How many hours will Jason have to spend writing this we

Erica has $14 and plans to save $5 each week until she has the $64 she needs for a new jacket. Par

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?

A small acting club has 8 members. How many different 2 member groups are possible?

An executive invests $23,000, some at 8% and some at 4% annual interest. If he receives an annual re

A textbook store sold a combined total of 307 biology and chemistry textbooks in a week. The number

The coach of a hockey team is holding tryouts and can take only 2 more players for the team. There a

Juan has d dimes and q quarters in his pocket. The total value of the coins is less than $14.75. Whi

Dave rented a limousine for his wife's birthday. The hourly rate is $60. They used the limousine for

Hari planted 324 plants in such a way that there were as many rows of plants as there were number of

You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet.

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 a number is increased by 16 and then divided by 3, the result is 8

A recent survey showed that 49% of recent college graduates named flexible hours as their most desir

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

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

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

What numbers have an absolute value of 9

Write a system of equations to describe the situation below, solve using any method, and fill in the

In this class of 4/5 students are right handed. if there are 20 right handed students, what is the t

Kim, Jenny, and Wendy are basketball players. Each plays a different position (guard, forward, and c

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

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

Kevin borrowed $8000 at a rate of 7.5%, compounded monthly. Assuming he makes no payments, how much

A family buys airline tickets online. Each ticket costs $167. The family buys travel insurance with

Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes and how many quarters does he

The ratio of girls to boys is 14 girls to 12 boys. If there are 6 boys, how many girls are there?

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,

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

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

Given that E[Y]=2 and Var [Y] =3, find E[(2Y + 1)^2]

A box

A box contains 4 plain pencils and 4 pens. A second box contains 5 color pencils and 3 crayons. One

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 -

Two consecutive even integers that equal 126

A person places $230 in an investment account earning an annual rate of 6.8%, compounded continuousl

14 oranges $3.78

Your grandma gives you $10,000 to invest for college. You get an average interest rate of 5% each ye

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?

The ratio of men to women working for a company is 3 to 4. If there are 81 men working for the compa

Rachel deposits $6000 into an account that pays simple interest at a rate of 6% per year. How much i

If p+4=2 and q-3=2, what is the value of qp?

If a teakettle holds 1.75 quarts of water, how many cups of tea can be made?

Stephanie and her sister go bowling every weekend and have been keeping track of their wins for the

When an alligator is born it is about 8 inches long each year they grow 12 inches determine the age

24 students in a class took an algebra test and 19 of them earned a B or better. What percent of stu

The admission fee at an amusement park is $1.50 for children and $4.00 for adults. On a certain day,

Find four consecutive odd numbers which add to 64

please solve the fifth word problem

please solve the fifth word problem

Norwood High Schools jazz band includes 33 trombone players and 27 trumpet players. Meanwhile, Lakew

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

Math Written Assignment

$2,030.00 was invested at 10% per annum compounded annually. What interest has been earned (in dolla

John spent $10.40 on 5 notebooks and 5 pens. Ariana spent $7.00 on 4 notebooks and 2 pens. What is t

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

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

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

On the math test, Ralph answered 17 out of 20 problems. What percent did he get right?

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

The weight of a 9.5-inch by 6-inch paperback book published by Leaden Publications, Inc., is 16.2 oz

Cody invests $4,734 in a retirement account with a fixed annual interest rate of 4% compounded conti

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

Claire makes bracelets using blue and red beads.Each bracelet has 20 red beads and 5 blue beads.Writ

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

Alonzo needs to buy some pencils. Brand A has a pack of 36 pencils for $8.52. Brand B has a pack of

A+B+D=255 B+15=A D+12=B A=

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

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

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

Word Problem

The jimenez family inherited land that was purchased for $50,000 in 1967. The value of the land incr

If you triple a number and then add 10, you get one-half of the original number. What is the number

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

The perpendicular height of a right-angled triangle is 70 mm longer than the base. Find the perimete

Age now and then

Yesterday, Kareem had n baseball cards. Today, he got 9 more. Using n, write an expression for the t

Age now and then

Hope it's okay to ask this here?

A baseball player gets 7 hits in the first 15 games of the season. If he continues hitting at the sa

Two numbers total 50 and have a difference of 28. Find the two numbers.

if x2 is added to x, the sum is 42

There are two bells in the school. Bell A rings every 2 minutes. Bell B rings every 3 minutes. If bo

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?

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

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?

A town has a population of 12000 and grows at 5% every year. What will be the population after 12 ye

If y varies inversely as X and Y equals 5 when x equals 2 find X when Y is 4

Kendra has $5.70 in quarters and nickels. If she has 12 more quarters than nickels, how many of each

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

The Sum of three times a number and 18 is -39. Find the number

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

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

Tom has a collection 21 CDs and Nita has a collection of 14 CDs. Tom is adding 3 cds a month to his

A quarter of the learners in a class have blond hair and two thirds have brown hair. The rest of the

If the ratio of private school students to public school students in a city is 4 to 15 and there is

A parking lot has sixty-eight parking spaces numbered from 1 to 68. There are no cars in the parking

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

Serial numbers for a product are to made using 4 letters followed by 4 numbers. If the letters are t

An electric motor makes 3,000 revolutions per minutes. How many degrees does it rotate in one second

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

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

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

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 boy spent one-half of his money for a book and one-third of his money for a pen. The remaining $2.

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.

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

The sum of 5 odd consecutive numbers is 145

The sum of Juan’s age and Sara’s age is 33 yrs. If Sara is 15 yrs old, how old is Juan?

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=

An executive invests $21,000, some at 8% and the rest at 7% annual interest. If he receives an annua

An executive invests $29,000, some at 8% and the rest at 6% annual interest. If he receives an annua

Melissa runs a landscaping business. She has equipment and fuel expenses of $264 per month. If she c

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

Flight is $295 and car rental is $39 a day, if a competition charges $320 and $33 a day car rental,

Your clothes washer stopped working during the spin cycle and you need to get a person in to fix the

Solving word problems with the matrix method?

If you paid $2.95 for 2.5 pounds of apples,what was the cost per pound?

Par on a golf course is 72. If a golfer shot rounds of 74, 70, and 71 in a tournament, what will she

John and Maria bought a medium pizza that has 8 slices. If John ate 2/4 slices and Maria ate 3/8, w

the length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width

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

Sara opened an account with $800 and withdrew $20 per week. Jordan opened an account with $500 and d

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

A woman earns $2400 per month and budgets $480 per month for food. What percent of her monthly incom

if f(x)=-5x+11 and f(n)=21 what does n equal

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 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

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

Stacy sells art prints for $12 each. Her expenses are $2.50 per print, plus $38 for equipment. How m

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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

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?

How many milligrams are in 20 grams

The ratio of adults to children at the beach is 4:3. If there are a total of 56 people how many are

Dotty McGinnis starts up a small business manufacturing bobble-head figures of famous soccer players

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

At 7:00 AM, the temperature started dropping 1 degree Celsius per hour until it reached 30 degrees C

Robert and Robert go to the movie theater and purchase refreshments for their friends. Robert spend

Carly grew 50 plants with 25 seed packets. With 37 seed packets, how many total plants can Carly hav

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

A wood screw advances 1/16 inch for each complete turn. How far will the screw advance in 8 complete

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

The ratio of men to women working for a company is 5 to 3 . If there are 75 men working for the

Annuity that pays 6.6% compounded monthly. If $950 is deposited into this annuity every month, how m