Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (

Question

Novay_Z [31]

3 years ago

9

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?

Mathematics

1 answer:

Eva8 [605] · Answer 1 · 2022-04-18T04:05:20+03:00

Eva8 [605]3 years ago

3 0

Plug 4 in for every x

(3*4)-4=8
(4^2)-1=15 [(4^2) is 4*4]
(2*(4^2))-15= 15 [because of PEMDAS the exponent comes first and then multiply by 2 then subtract]

Perimeter is the sum of the lengths so add up all the sides from above
8+15+15=38