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September 4, 2015

Homework Help: Calculus AP

Posted by David. on Friday, October 23, 2009 at 12:37am.

Can someone help me step by step how to find the answer to this problem.

The amount of air in a balloon at time t is given by the equation
a(t)=3tsint+t^2 where t is measured in seconds and the amount of air is measured in cubic centimeters.

a. what is the amount of air in the balloon after 10 seconds.
b. is the amount of air in the balloon increasing or decreasing at t=4 seconds and at what rate ?
c. When does the amount of air in the balloon reach 30 cubic centimeters?


THANK YOU!

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