Find the marginal cost, marginal revenue, and marginal profit functions. C(x) = 7x2; R(x) = x³ + 11x + 13 marginal cost marginal revenue marginal profit ZIN Find all values of x for which the marginal profit is zero. Interpret your answer. (Enter your answer X =

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A: Suppose f(7,1) = 12, and If fXX (7, 1) = -6, fXY(7, 1) = 8, fYY(7, 1) = 4,

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A: See this solution in below.

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A: Suppose that y varies directly with x, and y=18 when x=-3 a) write a direct variation equation…

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A: As per the rules we can answer the first question and rest can be reposted.

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A: Solve the given

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