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ryzh [129]
3 years ago
13

You have 72 feet of fencing to enclose a rectangular plot that borders on a river. if you do not fence the side along the river,

find the length and width of the plot that will maximize the area

Mathematics
1 answer:
vodka [1.7K]3 years ago
8 0
The area is maximized when half the fence is used along the river. The length and width of the plot are 36 ft and 18 ft.

_____
Let x represent the length of fence parallel to the river. Then the area (A) can be described by
.. A = x(72 -x)/2
This equation describes a downward-opening parabola with zeros at x=0 and x=72. Its vertex (maximum) is halfway between the zeros, at x=36.

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Answer:

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Step-by-step explanation:

Given expression -3x^3(-2x^2+4x-3)

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Consider the given expression -3x^3(-2x^2+4x-3)

Multiply each term in brackets by -3x^3, we get,

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