Find me the length of the unknown side

B. 13

Phytagoras Theorem :

x² = 12² + 5²

x² = 144 + 25

x² = 169

x =

x = 13

So, the length of the unknown side is 13 (B)

#CMIIW

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

step-by-step explanation:

what is the figure? attach a picture.