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November 21, 2014

November 21, 2014

Posted by **Michael** on Monday, November 14, 2011 at 5:41pm.

Please help. I have no idea how to do this problem!

- Calculus -
**Reiny**, Monday, November 14, 2011 at 7:01pmdV/dr = 4π r^2

dV = (4πr^2)(dr)

sub in r = 10 and dr = .1

dV = 4π(100)(.1) = 40π

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