3 years ago

URGENT HELP PLEASE.

Mathematics

1 answer:

AlladinOne [14]3 years ago

6 0

W + 2w = 60

this equation is wrong

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You have 42 ft. of fencing (1 ft. segments) to make a rectangular garden. How much should each side be to maximize your total ar

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Answer:

$Length=10.5\ ft$

$Width=10.5\ ft$

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Step-by-step explanation:

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y---> the width of the rectangular garden

we know that

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$42=2(x+y)$

simplify

$21=(x+y)$

$y=21-x$ ------> equation A

Remember that the area of rectangle is equal to

$A=xy$ ----> equation B

substitute equation A in equation B

$A=x(21-x)$

$A=21x-x^{2}$ ----> this is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex is the maximum area

The x-coordinate of the vertex is the length side of the rectangle that maximize the area

using a graphing tool

The vertex is the point $(10.5,110.25)$

see the attached figure

$x=10.5\ ft$

Find the value of y

$y=21-10.5=10.5\ ft$

The garden is a square

the area is equal to

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3 years ago

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lord [1]

X would be equal to 8.

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3 years ago

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Ber [7]

Answer:

2/1

Step-by-step explanation:

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