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Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?

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968397
if x equals four then it would be 3(4) -1 + 4(2)-1 +2(4)(2) -15 what should equal 
16feet im not entirely sure but i hope it helps 
JeanaShupp

Answer: 40 feet.

Step-by-step explanation:

Given : The lengths of the edges of the triangle are [tex](3x-4)[/tex] feet, [tex](x^2-1)[/tex] feet, and [tex](2x^2-15)[/tex] feet.

Since , the perimeter of any figure is the sum of all its edges.

Then the perimeter of the give triangle will be :-

[tex]P(x)=3x-4+x^2-1+2x^2-15\\\\=3x^2+3x-20[/tex]

At x= 4

[tex]P(4)=3(4)^2+3(4)-20=40[/tex]

Hence, the  perimeter of the triangle if x = 4 will be 40 feet.

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