The daily cost (in dollars) of producing Samsung VR headsets is given by where a denotes the number of headsets produced in a day and the total revenue in dollars is given by O-574 O-594 C(x) = 900+600x² +9x³ O-634 Using the marginal average profit function, P'(x), approximate the marginal average profit when 3 headsets have been produced and sold. O-604 O-614 R(x) = 2000x - 60x²

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