Homework (t5)

Question 8

Calculate the indicated Riemann sum S", for the function f(x) = x2 - 7x - 7. Partition [1,7] into six subintervals of equal length, and let c1 =1, 02 = 3, c3 = 3, c4 = 5, c5 = 5, and c6 = 7. \fThe total cost (in dollars) of manufacturing x auto body frames is 000 = 40,000 + 600x. (A) Find the average cost per unit if 500 frames are produced. [Hint: Recall that 6(x) is the average cost per unit] (B) Find the average value of the cost function over the interval [0.500]. (C) Discuss the difference between parts (A) and (B). (A) The average cost per unit if 500 frames are produced is $|:|. (B) The average value of the cost function is SE. (C) $ is the average cost per unit at a production level of 500 units. $ is the average value of the total cost as production increases from 0 to 500 units