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adoni [48]
1 year ago
5

Please help me i need help!

Mathematics
1 answer:
Lynna [10]1 year ago
6 0

For number 22:

7y=8x-14 ; y=6

Plugging in y, we get:

7*6 = 8x - 14

42 = 8x-14

56 = 8x

x = 7

Comparing answers, x is, indeed 7.

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3 years ago
9x+10x²-x³
allsm [11]

According to the solving  the perimeter of the given triangle is:

= -x³ + 13x² + 11x + 20

<h3>Describe the triangle:</h3>

Three edges and three vertices make up a triangle, which is a polygon. It is among the fundamental shapes in geometry. Triangle ABC refers to a triangle with the vertices A, B, and C. In Euclidean geometry, any three points that are not collinear determine a singular triangle and a singular plane at the same time.

<h3>What is the formula for the triangle's perimeter?</h3>

Simply summing the lengths of all the sides of a triangle yields its perimeter. A + B + C is the basic formula to determine the perimeter of a triangle with sides "a," "b," and "c."

<h3>According to the given data:</h3>

A = 9x+10x²-x³

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We know that the perimeter of the triangle is sum of all side of the triangle:

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= (9x+10x²-x³) + (-x² + 9x + 12)+(4x²-7x+8)

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To know more about Triangle visit:

brainly.com/question/2773823

#SPJ13

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9 months ago
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