Justin used the work to shown to estimate the radius of a sphere that has a surface area of 113.04 m2. Is he correct? Explain. S = 4πr
113.04 = 4(3.14)r
113.04 = 12.56r
9 = r

no he is not correct

Step-by-step explanation:

SA=113.04

SA=4pi*r^2

113.04=4*pi*r^2

113.04/4pi=r^2

8.995...=r^2

r= radical(8.995..)

r=2.9992...

r=3

the mistake happened when they forget to square the r in the SA formula

No, the answer is not correct. Justin did not write the correct formula. In the formula, the radius should be squared. The correct answer is r = 3m.

Step-by-step explanation:

that was the sample response so i'm sure its correct.

32

step-by-step explanation:

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e