PLEASE ANSWER QUICKLY (16 points) (08.01 MC)

Two lines, A and B, are represented by equations given below:

Line A: y = x − 4

Line B: y = 3x + 4

Which of the following shows the solution to the system of equations and explains why?

X=-4, y=-8

Step-by-step explanation:

x − 4 = 3x + 4

x - 4 - 3x = 3x - 3x + 4

-2x - 4 = 4

-2x - 4 + 4 = 4 + 4

-2x = 8

-2x/-2 = 8/-2

x = -4

then insert -4 for x then solve the equations.

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft