Question 765271
 Solve the problem. 
The cost in millions of dollars for a company to manufacture x thousand automobiles is given by the function C(x) = 5x^2 - 50x + 225. Find the number of automobiles that must be produced to minimize the cost.
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Minimum occurs when x = -b/(2a) = 50/(2*5) = 5
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Cheers,
Stan H.