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iris [78.8K]
3 years ago
5

A pasture is to be enclosed with 200 feet of fencing on three sides and a barn on the fourth side.

Mathematics
1 answer:
UNO [17]3 years ago
6 0
Well lets have x be the side perpendicular to the barn. You will have two sides of length "x". Which means the side parallel to the barn has the length of (200 -2x)
So we know the area of the pasture is length * width or x * (200 - 2x)
This means we are seeking to maximize x * (200 - 2x).
This is actually a parabola with zeroes that are at x = 0 and x = 100 which means the vertex is at x = 50.
So when x = 50 > (200 - 2x) = 100
So that means the maximum area of the pasture is 50 * 100 = 5000 square feet.
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