SOLUTION: if the cost, C(x), for manufacturing x units of a certain product is given by C(x)=x^2-10x+61 find the number of units manufactured at a cost of $8500.

SOLUTION: if the cost, C(x), for manufacturing x units of a certain product is given by C(x)=x^2-10x+61 find the number of units manufactured at a cost of $8500.

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Question 1054252: if the cost, C(x), for manufacturing x units of a certain product is given by
C(x)=x^2-10x+61
find the number of units manufactured at a cost of $8500.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
C(x)=x^2-10x+61
8500=x^2-10x+61
x^2-10x-8439=0
x=(1/2)(10+/-sqrt (100+33756)); sqrt term=184
x=(1/2)(10+184), positive root only
x=97 units ANSWER
check
97^2-970+61=9409-970+61=$8500

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