The radius r of a cone is increasing at a rate of 4in/min. the height h of the cone is always 4 times the radius. find the rate of change of the volume v when the radius is 7 inches. hint: v = 1/3 pi *r^2*h

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

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