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Dmitry_Shevchenko [17]
3 years ago
9

If the farmer has 152 feet of fencing, what are the dimensions of the region with the largest area?

Mathematics
2 answers:
GuDViN [60]3 years ago
8 0

What's the shape of what the farmer is fencing?

iogann1982 [59]3 years ago
6 0

Answer:

square of  each side=38 ft

Step-by-step explanation:

square has the largest area.

each side=152/4=38ft

alternatively

let x and y be the sides

2x+2y=152

x+y=76

y=76-x

area A=xy=x(76-x)=76x-x²

\frac{dA}{dx} =76-2x\\\frac{dA}{dx} =0,gives ~76-2x=0\\2x=76\\x=76/2=38 \\\frac{d^2A}{dx^2} =-2

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