anonymous
  • anonymous
The cost of manufacturing x items is given by C(x) = 0.02x^2 + 20x + 1800. Find the marginal cost function. Compuare the marginal cost at x = 20 to the actual cost of producing the 20th item.
Computer Science
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
This is what I did but my teacher said its wrong C(x) = 0.02x^2 + 20x + 1800 Cā€™(x) = 0.04x + 20 Cā€™(20) = 0.04(20) + 20 = 20.8 so this will be the marginal cost at x = 20 Acutal cost of the 20th item : c(20) - c(19) = 0.02(20^2) + 20(20) + 1800 ā€“ 0.02(19)^2 + 20(19) + 1800 = 4380.78
anonymous
  • anonymous
there is a lot of difference between marginal and actual cost.

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