Question: Here is my question I need help with. thx The volume of a spherical hot air balloon V ( r ) =4 3 r 3

Here is my question I need help with. thx

The volume of a spherical hot air balloonV(r) =4

3

r3

changes as its radius changes. The radius is a function of time given byr(t) = 3t.

Find the average rate of change of the volume with respect totastchanges fromt= 1

tot=2.

Find the instantaneous rate of change of the volume with respect totatt= 2.

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