SOLUTION: A circle has an initial radius of 25 cm when all of a sudden the radius begins shrinking at a constant rate of 3 cm per second. A)Write a formula that expresses the radius of the

Question 1127370: A circle has an initial radius of 25 cm when all of a sudden the radius begins shrinking at a constant rate of 3 cm per second.
A)Write a formula that expresses the radius of the circle in cm, r, in terms of the number of seconds t since the circle started shrinking.
B)Write a formula that expresses the area of the circle in cm2, A, in terms of the radius of the circle in cm, r.
C)Write a formula that expresses the area of the circle in cm2, A, in terms of the number of seconds t since the circle started shrinking.
D)Define a function f that determines the area of the circle in cm2 given the number of seconds t since the circle started shrinking
E)Repeat part (c), but assume that the radius of the circle is shrinking at a constant rate of 8 cm per second.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

A.

John

My calculator said it, I believe it, that settles it

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