What is the answer, please help

Rishil Antony asked Feb 12, 2023

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Rishil Antony asked Feb 12, 2023

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13 votes

Answer:
$768\pi=1024\pi-16\pi r^2, r=4$

Explanation:

We are given that
$V=768\pi$ , so
$768\pi=1024\pi-16\pi r^2$ .

$768\pi=1024\pi-16\pi r^2\\\\768=1024-16r^2\\\\-256=-16r^2\\\\16=r^2\\\\r=4 \text{ } (r > 0)$

User answered Feb 16, 2023

by User

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