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onegirl
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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.
 one year ago
 one year ago
onegirl Group Title
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.
 one year ago
 one year ago

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onegirl Group TitleBest ResponseYou've already chosen the best response.0
This is what i did but my teacher says it wrong. C(x) = 0.02x^2 + 20x + 1800 C’(x) = 0.04x + 20 C’(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 – 0.02(19)^2 + 20(19) + 1800 = 4380.78
 one year ago

onegirl Group TitleBest ResponseYou've already chosen the best response.0
@Numb3r1 @Loser66
 one year ago

Numb3r1 Group TitleBest ResponseYou've already chosen the best response.0
You should have had everything in the actual cost calculation after the minus in parenthesis. Redo the calculation taking that into account.
 one year ago

onegirl Group TitleBest ResponseYou've already chosen the best response.0
huh? i dont understand
 one year ago
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