Which of the following statements justifies why the triangle shown below is not a right triangle?
Y
13
4
х
12
Z

B

Step-by-step explanation:

B is basically showing the Pythagorean theorem does not work on the triangle's side lengths.

The pythagorean theorem is supposed to work for all right triangles

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

i agree because i see the other persons thinking is clear