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January 30, 2015

January 30, 2015

Posted by **john** on Friday, October 14, 2011 at 12:51am.

- calculus -
**MathMate**, Friday, October 14, 2011 at 6:00pmWithout using calculus:

Amount of paint

=surface area * thickness of paint(t)

=4πr²*t

Make sure you put everything in the right units (probably cm).

Using calculus:

V=4πr³/3

dV/dr=4πr²t

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