A company manufactures and sells DVDs. The revenue obtained by selling \( x \) DVD is given by the function
\( R ( x ) = 13.5 x - 0.05 x ^ { 2 }\)
Find the number of DVDs they must sell to receive \( \$ 850 \) in revenue.
Pregunta
Answer
850=13.5x-0.05x^2, x≈100 or x≈170
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