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Do Secure I https/www.mathxl.com/Student/Playertiomeworkaspxthomeworkld-4900831768questionid-2Bflushed-fals QMTH 210 Summer 2018 Willery Rivers &1 8/3/18 12:26 PM i Homework: Calculus Homework 2 Score: 0 of 22 pts HW Score: 1 %, 1 of 100 pts Bus Econ 1.6.53 Question Hep * The cost, in dollars, of producing x belts is given by Cox)-872+12x-0075x Find the rate at which average cost is changing when 196 belts have been produced (Round to four decimal places as needed Do not include the S symbol in your answer) answer box All parts showingExplanation / Answer
Here cost
C(x) = 872 + 12x - 0.075 x2
Here rate of change for the cost is
d C(x)/dx = 12 - 0.15x
so for x = 196 units
C(196) = 12 - 0.15 * 196 = - $ 17.4 for each additional belt.
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