Question

The formula for the surface area of a cylinder is A=2pr(r+h).Find h if A=80p and r=5.


1

3

5

6
Question 9 1 points Save

Solve:
|x| = 5


{5}

{-5}

{-5, 5}

{-1, 5}
Question 10 1 points Save

Solve: | m + 8| = 16


{8}

{-24, 8}

{8, 16}

{-24}

Answer 1

A = 2pi(r + h)
80 = 2pi(5 + h)
80 = 6.28(5 + h)
12.73 = 5 + h
h = 7.73

Answer: I plugged 7.73 back into the equation, and it is correct. Did you type the answers incorrectly?

Answer 2

{5}

Answer 3

{8}

Answer 4

The formula for the surface area of a cylinder is A=2pr(r+h).Find h if A=80p and r=5.


1

3

5

6

Answer 5

then its 6

Answer 6

gotb it .. lol one more and im done ...Solve: |2n - 3| = 5


{-1, 4}

{1, 4}

{-1, 1}

{1, -4}

Answer 7

1,4

Answer 8

those were all wrong .....

Answer 9

2n-3=5
2n=8
n=4
-2n+3=5
2n=-2
n=-1

Answer 10

-1,4