<PRE><B>Question 1155586</B>
The cost of making x skirts per day is given by the equation C = 2x^2 -160x + 3600, where c is the cost in dollars. How many skirts should be produced in order to minimize costs? What is the minimum cost?
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Find the vertex of the parabola C = 2x^2 -160x + 3600
It&#39;s at x = -b/2a = 160/4 = 40
40 skirts ---&gt; minumum Cost
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What is the minimum cost?
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C(x) = 2x^2 -160x + 3600
C(40) = 2*1600 - 160*40 + 3600
= 3200 - 6400 + 3600
= $400
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