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Math Help - solve my interval problem

  1. #1
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    solve my interval problem

    The volume, V of a sphere of radius r is given by V = (4πr^3)/3. Solving for r in terms of V gives
    r= f(V)= (3r/4π)1/3
    Calculate the average rate of change of r with respect to V over the intervals 0.5 ≤ V ≤ 1 and 1 ≤ V ≤ 1.5.

    Looking for help.

    Kindly explain each step so that i could understand.
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  2. #2
    A Plied Mathematician
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    The average rate of change of a function f(x) over the interval [a,b] is given by \frac{f(b)-f(a)}{b-a}. Does that help?
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