alleryStart learning →Marginal cost is MC = 6x + 4 and fixed cost is 100. Total cost at x = 10 is
A340
B440
C400
D444
Answer & Solution
Correct answer: B. 440
Integrating gives C = 3x^2 + 4x + 100, which is 300 + 40 + 100 = 440 at x = 10.
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