<PRE><B>Question 108389</B>
If a company earns a weekly profit of P dollars by selling x patterns, according to the formula P(x)=0.002x^2 +3.5x^2-800. 
How many patterns must it sell each month in order to have a maximum profit?
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Your equation does not have a maximum value; it has a minimum.
Check the problem and post again.

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What is the maximum profit? 
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Cheers,
Stan H.
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