SOLUTION: A company that manufactures bicycle frames has determined that the monthly profit (in dollars) from the sale of x frames is given by P(x) = � 0.05x3 + 1.

Question 422376: A company that manufactures bicycle frames has determined that the monthly profit (in dollars) from the sale of x frames is given by
P(x) = � 0.05x3 + 1.5x2 + 5x � 13000
Find the number of frames that must be sold per month for the profit to be zero. For what x-values will the profit be positive?

i have some problem with solving this problem.
could you help me in details?...:)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A company that manufactures bicycle frames has determined that the monthly profit (in dollars) from the sale of x frames is given by
P(x) = � 0.05x^3 + 1.5x^2 + 5x � 13000
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Find the number of frames that must be sold per month for the profit to be zero.
Solve: � 0.05x^3 + 1.5x^2 + 5x � 13000 = 0
Ans: I graphed it and found no Real Number solutions.
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For what x-values will the profit be positive?
Ans: none
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Cheers,
Stan H.

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