Question

PLEASE HELP ME!!!

If the diameter of a men’s basketball is 10 inches and a women’s is 9 inches, what is the approximate difference of their volumes?

A.137.6 in.^3
B.141.9 in.^3
C.145.6 in. ^

3

Answer 1

C

Explanation:

141.9in3

Answer 2

The volume of a sphere is.

V = 4/3 * π * r(raised to the 3rd power)V1 represents when r = 5
V2 represents when r = 4.5V1 = 4/3 * π * 4.5 * 4.5 * 4.5 = 381.51
V2 = 4/3 * π * 5 * 5 * 5 = 523.33V2 - V2 = 141.82The closest answer is B. I calculated this where π = 3.14, I'm assuming that the computer had a difference like calculating 3.14159 etc or rounded differently in the process, which contributes to the difference in answers. Hope this helps.