College Algebra Questions?

Please help me :) A stone is dropped into a pond, causing a circular ripple that is expanding at a rate of 10 ft/sec. Describe the area of the circle, A , as a function of time, t . Enter an exact answer in terms of pie. Check whether f and g are inverses of each other. f(x) = 2x + 2 and ... show more Please help me :)

A stone is dropped into a pond, causing a circular ripple that is expanding at a rate of 10 ft/sec. Describe the area of the circle, A , as a function of time, t .

Enter an exact answer in terms of pie.

Check whether f and g are inverses of each other.

f(x) = 2x + 2 and x-2/2

(f*g)(x)
(g*f)(x)

Find the inverse for the given function.

5/x+7
4 answers 4