The monthly cost of producing x bows is C(x)=8+2x. The revenue produced by selling x bows is R(X)=6x-0.3x^2. What is the number of bows you need to make and sell per month to make a profit?
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C(x)=8+2x. The revenue produced by selling x bows is R(X)=6x-0.3x^2.
Taking square root
If x=11 then P(x)=-0.3 which is loss .
If x=10 ,then P(x)=2 which is profit.
So I conclude x may be less than or equal to 10.
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