## anonymous one year ago The sides of a square are five to the power of two fifths inches long. What is the area of the square? five to the power of four fifths square inches five to the power of four twenty fifths square inches twenty five to the power of four fifths square inches twenty five to the power of four twenty fifths square inches

1. anonymous

@DanJS @dan815 @ali2x2

2. anonymous

A = s² $A = 5^\frac{ 2 }{ 5 }*5^\frac{ 2 }{ 5 }$ When you multiply numbers with the same base, add the exponents

3. anonymous

i got A?

4. anonymous

yes

5. anonymous

okay can u help me with one more

6. anonymous

ok

7. anonymous

Samantha puts an initial $500 into a savings account. The account has a 4% annual compound interest rate. What is the function that best represents Samantha's account and how much does she have in savings after 5 years? Round your answer to the nearest dollar. Hint: Use the formula, f(x) = P(1 + r)x. f(x) = 500(1.4)x,$2,689 f(x) = 500(0.04)x, $512 f(x) = 500(1.04)x,$608 f(x) = 500(1.04)x, \$527

8. anonymous

P is the initial amount, 500. r is the interest rate in decimal, 0.04, so the foumula is $P=500(1+0.04)^x$ $P=500(1.04)^x$ Plug in 5 for x to get the amount after 5 years

9. anonymous

@ali2x2 was i right

10. ali2x2