A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t)=1.5t and a(r)=лr^2, what composition of function describes the area of the oil ring in terms of time?

Step-by-step explanation:

Given

Required

Determine the area in terms of time

From the question, we have:

-> radius per time

and

--> area from radius

The interpretation of the question is to find the composite function: a(t)

If , and , the

Substitute 0.5t for r

i pretty sure it is

bn,mn,n.vn.

step-by-step explanation: