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Math Help - pre calc. rates

  1. #1
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    pre calc. rates

    as a large snowball melts, its size changes. The volume, V, in cubic centimeters, i given by the equation V= 4/3(pi)r^3 , where r is radius in centimeters, and re[0,30]

    a)write a simplified expression for hte avg. rate of change if the volume w/ respect to its radius from r=20 to r=20 +h
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  2. #2
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    Quote Originally Posted by blahblahblah View Post
    as a large snowball melts, its size changes. The volume, V, in cubic centimeters, i given by the equation V= 4/3(pi)r^3 , where r is radius in centimeters, and re[0,30]

    a)write a simplified expression for hte avg. rate of change if the volume w/ respect to its radius from r=20 to r=20 +h
    \frac{V(20+h) - V(20)}{(20+h) - 20}

    give it a go ...
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