Y = x + 5
y = -5x -1
so than you make y = y so x + 5 = -5x -1 result 6x = -6 so x = -6/6 so x = -1
and than you check it
y = - 1 +5 = 4
and
y = - 5 *(-1) -1 = 5 -1 = 4
so this mean that - 1 is the solution of the system sure
first polygon
ext. angle=180°-120°
=60°

n=360°/60°
n=6
second polygon
n=2(6)=12
ext. ang= 360°/n = 360°/12° = 30°
int. ang = 180°-30°= 150°
answer is C
<span>The number 6 – 8i is located in the 4th quadrant </span><span>on the complex plane.</span>
There is a total of 9 spaces between the two.
Meaning that the " 5th" segment is the midpoint.
The answer is : ( 5, -1)
hope it helps you.
The answer is C , congruent means the same