Approximate the integral by the trapezoidal rule.The following data give the marginal cost for different levels of production at Zipperty-Doo-Dah Inc. Here x represents the number of zippers produced and C'(x) is in dollars per zipper. Approximate the total in going from a production level of 40 zippers to 80 zippers. 
A. $85.50
B. $136.00
C. $272.00
D. $27.20
Answer: B
Mathematics
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Mathematics