I will give medal

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, (x^2 – 1) feet, and (2x^2 – 15) feet. What is the perimeter of the triangle if x = 4?

a) 16 feet
b) 40 feet
c) 76 feet
d) 80 feet

Question

I will give medal

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, (x^2 – 1) feet, and (2x^2 – 15) feet. What is the perimeter of the triangle if x = 4?

a) 16 feet
b) 40 feet
c) 76 feet
d) 80 feet

anonymous · Answer

Start off by replacing x by 4 in every equation. Then, add them all together.

anonymous · Answer

You should get something like this:
8 + 15 + 32 - 15
= 40