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3 years ago

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Ne4ueva [31]3 years ago

5 0

If the northern side has length x and the east and west sides have length y, then the cost of the fence is
<span>C = 12x + 12y + 6y </span>
<span>and the enclosed area is A = xy. </span>

<span>12x + 18y = 6000 </span>
<span>x = 500 - 1.5y </span>
<span>A = 500y - 1.5y^2 </span>

<span>A is maximized when y = 500/3. In which case x = 250. </span>

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Rama09 [41]

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