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a companys revenue from selling x units of an item is given as r= 1200x -3x^2 if sales are increasimg at the rate

of 60 units per day how rapidly is revenue increasing in dollars per day when 100 units have been sold in dollars per day

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rate of sale increase = dx/dt = 60 units per day , t in days r = 1200 x - 3 x^2 dr/dt =... View the full answer

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