the total cost for soni corp to manufacture DVD players is given by f(x) = 6x^3 - x^2 + 7x + 90, where x represents DVDs
find marginal cost for sony corp when it manufactures 5 DVDS
I got 447?
f'(x) = 18x^2-2x+7
at x = 5 it is
f'(5) = 450-10+7 = 447
Yay i got that. Thank you!
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