D) perpendicular!
A perpendicular's definition is: a straight line at an angle of 90° to a given line, plane, or surface.
And if you mark them on a graph you could see these two are opposite of each other.
12819=
Yx ..................................
It will be 69 degrees.
(x-1)+x+43=180
2x+42=180
2x=138
x=69
1/-x*5y/-8
-1/x × (-5y/8)
5y/8x
Answer:
2 (6/x-6)+4
Step-by-step explanation: