For 38 find functions f and g and such that h = g o f Note: The answer is not unique.)

38. h(x)=(2x-3)^3/2

In Exercises 47, 48, 49, 50, 51 and 52, find and simplify f(ath) - f(a) (h # 0) h for each function. Answer 48. f (a) = 2ac2 - ac + 180. Area of a Norman Window A Norman window has the shape of a rectangle surmounted by a semicircle (see the accompanying figure). Suppose a Norman window is to have a perimeter of 28 ft. Find a function in the variable x giving the area of the window. X K