A rain drop hitting a lake makes a circular ripple. If the radius, in inches, grows...

 

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A rain drop hitting a lake makes a circular ripple. If the radius, in inches, grows as a function of ti minutes according to r(t) = 30√t+2, find the area of the ripple as a function of time. Find the of the ripple at t = 2. Enter the exact answer. For the number 7, you can either type pi or you can click the button with it. Do not enter any commas in your answer. A = a b |0 |a| k sin (a) 18 in.2 A rain drop hitting a lake makes a circular ripple. If the radius, in inches, grows as a function of ti minutes according to r(t) = 30√t+2, find the area of the ripple as a function of time. Find the of the ripple at t = 2. Enter the exact answer. For the number 7, you can either type pi or you can click the button with it. Do not enter any commas in your answer. A = a b |0 |a| k sin (a) 18 in.2

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If the radius is rt30t2 and knowing that the formula ... View the full answer