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September 30, 2014

September 30, 2014

Posted by **jj** on Tuesday, October 11, 2011 at 8:25pm.

- math -
**bobpursley**, Tuesday, October 11, 2011 at 8:33pmI assume you do calculus.

V= 4/3 PI r^3

dV/dt= 4 PI r^2 dr/dt

you are given dV/dt= 50cm^3/s; find dr/dt

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