Arthur D.

Probability

10/07/13

Picking r objects from n when order does NOT count

In how many different ways can you grab three coins from a box containing 12 coins?

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Geometry

10/07/13

find the difference between two positive number

find the difference between two positive numbers is 4 and the sum of their squares is 58. Find the numbers the bigger number is= the smaller number is =

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Math Algebra Help Math Help

10/06/13

Use a calculator to write a four-decimal-place approximation of the number (round to four decimal places as needed)

Use a calculator to write a four-decimal-place approximation for the number (round to four decimal places as needed.) 51/4

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Math Algebra Algebra Help

10/06/13

Simplify the exponential expression

Simplify the exponential expression. (-2x3y4)5

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Math Algebra Roots And Radicals

10/06/13

Find the root. Assume that the variable represents a nonnegative real number

Find the root. Assume that the variable represents a nonnegative real number. 4√625x^20

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Algebra

10/05/13

Addition and Subtraction w/ different denominators

I swear this was suppose to be easy, but it turned out it was really difficult. Can you show me the complete solution for this equations? 1. 3/x-5 + 7/5-x 2. 30-4x/x^2-9 + 7/x+3 3.... more

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Math

10/05/13

HELP ME OUT PLEASE SOLVE IT

Solved the system by substitution.if the system is inconsistent and has no solution,state this .if the system is dependent,write the form of the solution for any real number x. (1) x=4y+3 2x+5y=-7... more

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Algebra 2 Algebra 2 Help Algebra 2, Math, Graphing

10/05/13

A rental car agency charges a flat fee of $38.00 plus $2.75 per day to rent a certain car. Another agency

charges a fee of $31.75 plus $4.00 per day to rent the same car. Use a graphing calculator, find the number of days for which the costs are the same. Round your answer to the nearest whole... more

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Polygons

10/05/13

what is a concave polygon?

What is the difference between a convex and a concave polygon?

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Algebra Summer Assignment

10/05/13

Math summer assignment questions. Please help!

Adding & Subtracting w/ Different denominators: 1. 3/x-5 + 7/5-x 2. 30-4x/x^2-9 + 7/x+3 3. 5x/5x^2-125 + 5x-5/x^2-6x+5 4. 2/x-2 - 10/x^2+x-6 5. 8/6x-18 - 14/6-2x 6.... more

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Algebra

10/05/13

Questions about Algebra.

Please bear for my long questions here, but I literally need our help in my assignment.Graph the linear system and determine how many solutions it has: no solution, exactly one solution... more

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Algebra

10/03/13

Rewrite formulas and equations.

1. Solve for t in the equation -9 = t + 4s 2. Solve for A: B = 5/7(A - 11)

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Fractions

10/02/13

What is 6/7 divided by 2/3?

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Factoring

10/02/13

9m^3n-36mn^3+39m^4n^2

Factoring Polynomials

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Math Equations

10/02/13

6x(x-1) = 21 - x

solving equation by factoring

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Quadratic Equations

10/01/13

Can you solve this problem 9xsquared-9x+2=0 x=

9 x 2 - 9x + 2 = 0 x=

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Algebra Word Problem

09/30/13

there's the problem, can you PLEASE break it down so I can understand it??

Paul invests $15,250 in two different accounts. One pays an interest rate of 8.5% while the other account pays 10%. If he gains a total of $1411.75 annually, how much did he invest in each account?

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Other

09/30/13

We're doing Percents Greater Than 100 and I need help

On Saturday, Breanna drove 10 miles. On Sunday, she drove 70 miles. The number of miles Breanna drove on Sunday is what percent of the number of miles she drove on Saturday?

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