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vladimir2022 [97]
3 years ago
6

A rancher has 4 comma 700 feet of fencing available to enclose a rectangular area bordering a river. he wants to separate his co

ws and horses by dividing the enclosure into two equal areas. if no fencing is required along the​ river, find the length of the center partition that will yield the maximum area.
Mathematics
1 answer:
guapka [62]3 years ago
4 0
Area=length*width
let the sides perpendicular to the river be x
then  the side parallel to the river is 4,700-2x 
A(x)=x(4700-2x)
A(x)=4700x-2x^2

This a quadratic function with a=-2 and b=4700
thus
Maximum area occurs where x=-b/2a=-4700(-2*2)=1,175 ft
length=4700-2(1175)=2,350 ft
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