1.

Which of the following are true? Select one: O a. f(x] = ox - bx + c implies f '(x) = 3ax - b + c O b. f (x) = 4x + 3/x" implies f '(x) = 4 - 3/x3 O c. f (x) = 6x - 3x3 + 5x + 7 implies f '(x) = 18x~ + 6x + 5 O d. f(x) = 3x2/3 implies f '(x) = 6x-1/3For the following total cost function, find marginal cost (MC), average total cost (ATC) and average variable cost (AVC) and then decide which of the following are true. TC = 0.1Q3 - 4Q' + 80Q + 150 implies Select one: O a. ATC = 0.1Q- - 4Q+ 80 O b. AVC = 0.1Q3 - 8Q +80 O C. MC = 0.3Q2 - 8Q + 80 O d. MC = AVC at Q = 30A demand function is given by: Q. = 52 - P2 At the point (P,Q) = (2,48) , the price elasticity of demand is equal to: Select one: O a. 2- 104/Q O b. -1/3 O C. -4 O d. -1/8Which of the following are true? Select one: O a. f(x) = 4x + 3/x2 implies f '(x) = 4x - 6/x3 O b. f(x) = ax implies f'(x) = ax7-1 O c. f(x) = In(x) implies f'(x) = x1 O d. f(x) = 4x5 - 3x2 implies f "(x) = 20x-5 - 6x-2RM100 invested for 5 years at 6% per annum interest compounded annually will grow to: Select one: O a. [100(1.06)]5 O b. 100 [1 + (0.06)(5)] O C. 1065 O d. 100 (1 + 0.06)5