all it says is solve, please include steps :)

all it says is solve, please include steps :)

The area of a circle with radius r is given by the formula A=π r2 . If a circle has area 169π square inches, what is the radius?

The formula a=p(1+r)^2 gives the amount A is dollars that P dollars wil grow to in 2 years at interest rate R (where r is given as a decimal), using compound interest. What interest rate will...

(X3/2y1/2)3/2

What is the value of the discriminant for 5x^2 + 7x = 6 ? How many different real number solutions does the equation have? Thanks SO MUCH for answering! :)

3r + 5 =-11

The problem is for a extra credit math problem. And having a hard time on it.

√x(√x^5 - √4x)

Using two variables and two equations to find the answer

Trying too find n. I think this would involve natural log, but I'm confused since there's a negative.

9 books are to be bought by a student. Some cost $6 each and the remainder cost $6.50 each. If the total amount spent was $56, how many of each were bought?

Randall is 6 years older than Amy. In 7 years the sum of their ages will be 46. How old is Randall now?

I tried doing P = 2U > P = 2(P+20) but it does not work

9(-3x-12)-3(x-8) > 9(-3x-10)-5(x+10) Would it come out to be -30x-57 > -32x-140 ? Edit: I see my mistake thank you for solving ***SOLV...

I'm stuck on this priblem and not sure how to do it please solve it with the steps, thank you.

Expand (√5 + 2√3)(√5 -2√3). Express your answer as simply as possible. Please explain how to answer this question. Thanks :)

Rationalise the denominator of 21/√7 and simplify the answer. Please explain a) what this question means and b) how to answer it. Thanks :)

Solve 3/x + 3/2x = 2 Please explain how to answer this question. Thank you :)

I usually know how to solve interest problems but I seem to be really stuck on this one. Any help would be appreciated! It says A college student receives an interest-free loan of $8250 from a...

i need help