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katrin [286]
3 years ago
10

Jillian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side. the area of the smalle

r lawn is 144 square feet. in the equation(x – 8)^2 = 144, x represents the side measure of the original lawn.what were the dimensions of the original lawn?4 feet by 4 feet8 feet by 8 8 feet by 8 20 feet by 20 feet
Mathematics
2 answers:
tatiyna3 years ago
7 0
(x - 8)^2 = 144
take the sq rt of both sides
x - 8 = 12
x = 12 + 8
x = 20

20 feet by 20 feet
Vsevolod [243]3 years ago
6 0

Answer:

D is the answer

Step-by-step explanation:

Edgunity 2020 :)

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<u><em>Explanation</em></u>

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r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}

First, for each point(x, y), we need to calculate x², y² and xy .

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<em>(Please refer to the attached image for the table )</em>

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