3 years ago

Please help Me!! D: There is a pi in there in 972.

Mathematics

2 answers:

Nana76 [90]3 years ago

7 0

V = 4/3 pi r^3

r^3 = 3V / 4pi

r^3 = (3 * 972pi) /(4pi)

r^3 = 729

r = 9

Answer

B. 9 inches

Komok [63]3 years ago

3 0

V = 4/3 π r³

Given that v = 972π

972π = 4/3 π r³

\\Multiply by 3 on both sides

2916π = 4 π r³

\\ Divide by 4π on both sides

729 = r³

\\cube root both sides

∛729 = r

9 = r

Answer: r = 9 inches

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