Average Cost Jester Sports manufactures tennis rackets. The total cost of producing a rackets per hour is given by C(x) = 0.41 x² + 5.3 x + 440. The average cost per racket at production level x rackets per hour is C'(x) Use differential approximations to estimate the change in average cost per racket if the production is increased from 20 per hour to 22 per hour. Round to the nearest cent. $ per racket NOTE: Your answer may be negative. C(x) 8

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