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Algebra
Question

A supply company manufactures copy machines. The u...

A supply company manufactures copy machines. The unit cost \( C \) (the cost in dollars to make each copy machine) depends on the number of machines made. If \( x \) machines are made, then the unit cost is given by the function \( C ( x ) = x ^ { 2 } - 680 x + 135,579 \) . How many machines must be made to minimize the unit cost? Do not round your answer. 

Answer

340

Solution
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