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July 25, 2014

Posted by **Naz** on Tuesday, January 18, 2011 at 7:13pm.

a. -(0.2)pie C

b. -(0.1)C

c. -(0.1)C/2 pie

d. (0.1)^2C

e. (0.1)^2 pie C

- AP Calculus -
**MathMate**, Tuesday, January 18, 2011 at 8:19pmC=2πr

A=πr²

dA/dr=2πr=C

dr/dt=-0.1 cm/sec

dA/dt

= dA/dr * dr/dt

= 2πr (-0.1) cm²/s

= -0.1C cm²/s

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