Find f'() if f(z) = (8x - 2) . (512 + 8)4.Let f(x) = (-972 -9)3(3x2 +6) 3.Let f(x) = V3 - 2c f'(x) =A total-revenue function is given by R(z) = 1500V23-0.2r where R(x) is the total revenue, in thousands of dollars, from the sale of I airplanes. Find the rate at which the total revenue is changing when 30 airplanes have been sold. dollars per airplane Round to two decimal places.A total-cost function is given by C(x) = 1200(27 + 5)1/3 +600 where C(x) is the total cost, in thousands of dollars, for the production of I airplanes. Find the rate at which the total cost is changing when 30 airplanes have been sold. dollars per airplane Round to two decimal places