The perimeter of the polygon is_units.

3 units

Step-by-step explanation:

Since the sides are congruent, then

5 - 2x = - 4x + 9 ( add 4x to both sides )

5 + 2x = 9 ( subtract 5 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

Then

5 - 2x = 5 - 2(2) = 5 - 4 = 1

perimeter = 3 × 1 = 3 units

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

answer: 48

just remember to use pemdas:

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