Question

7. answer please and thank u

Answer 1

The measure of the missing side is 3x^3 +2x - 7y + 9

Perimeter of a triangle

The perimeter of a triangle is equal to the sum of all the sides of the triangle. Mathematically;

P = s1 + s2 + s3

where;

s1 = s2 = -8x^3 + 2

P = -13x^3 + 2x - 7y + 3

Substitute the given parameters

-13x^3 + 2x - 7y + 3 = s3. + 2(-8x^3 + 2)

-13x^3 + 2x - 7y + 3 = s3 - 16x^3 -4

s3 =  -13x^3 + 2x - 7y + 3 + 16x^3 + 6

s3 = 3x^3 +2x - 7y + 9

Hence the measure of the missing side is 3x^3 +2x - 7y + 9

learn more on perimeter of triangle here: brainly.com/question/24382052

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