A firm estimates that it can sell Qunits of its product with an advertising expenditure of...

 

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A firm estimates that it can sell Qunits of its product with an advertising expenditure of x thousand dollars where Q = Q(x) = -x² + 600x + 25 i) Over what level of advertising expenditure is the number of units of product sold increasing? ii) Over what level of advertising expenditure is thc number of units of product sold decrecasing? A firm estimates that it can sell Qunits of its product with an advertising expenditure of x thousand dollars where Q = Q(x) = -x² + 600x + 25 i) Over what level of advertising expenditure is the number of units of product sold increasing? ii) Over what level of advertising expenditure is thc number of units of product sold decrecasing?