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8_murik_8 [283]
3 years ago
5

Hi I really need help with this question(It's my last one on this quiz)PLEASE HELP) 20 POINTS!!!

Mathematics
1 answer:
Wittaler [7]3 years ago
6 0

Answer:

C.) x = 11 and y = 2

(x-y)^{2}=x^{2}-2xy+y^{2}\\(11-2)^{2}=(9)^2=81\\\\or\\(11-2)^2=(11)^2-2(11)(2)+(2)^2\\=121-44+4\\=81

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If rounded to the nearest dime, what is the greatest amount of money the rounds to $105.40? What is the least amount of money th
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3 years ago
What is the area of the following polygon?
muminat

The area of the polygon is 25.5 square units

<h3>How to determine the area of the polygon?</h3>

From the figure, we have the following coordinates

A = (-2, 1)

B = (3, 2)

C = (5, -3)

D = (-1, -3)

The area of the polygon is then calculated as:

A = 0.5 * |(x1y2 - x2y1) + (x2y3 - x3y2) + (x3y4 - x4y3) + (x4y1 - x1y4)|

Substitute the known values in the above equation

Area = 0.5 * |(-2 * 2 - 3 * 1) + (3 * -3  - 5 * 2) + (5 * -3  + 1 * -3) + (-1 * 1 + 2 * -3)|

Evaluate the sum of products

Area = 0.5 * |-51|

Remove the absolute bracket

Area = 0.5 * 51

Evaluate the product

Area = 25.5

Hence, the area of the polygon is 25.5 square units

Read more about areas at:

brainly.com/question/25292087

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Step-by-step explanation:

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