Hi guys, can you help me out with a homework question. I'm stuck and dont know what to do. Question state:(adsbygoogle = window.adsbygoogle || []).push({});

A spherical balloon with radius r inches has volume V(r) = (4/3)r3. Find a function that represents the amount of air A required to inflate the balloon from a radius of r inches to a radius of r + 1 inches.

Don't I just replace (r) with (r+1).. ?

3. The attempt at a solution

A(r)= (4/3)pi(r+1)^3 ??

Thanks a lot.

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# Homework Help: Symbolic Question

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