Maximize the Area

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What dimensions will maximize the area?

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W                                                                            W

L

2W + L = 40

L= 40–2w

A (W)= W(20–2W)                          –2W2 +40W =0

-b         = —40       =        40         = 10

2a           –2(2)                10

A (10) 10(40-2(10) ) = 10( 20  ) = 200m

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I meant 200m^2

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