The answer is : multiply 5
Parallel line means the same slope
（8-1）/(-17-a)=(1-5)/(a+2)
so a is 18
Angle a = 60
given that all angles of a triangle added together must equal 180
x = -20
-20+80=60
do it again for the other angle measurement
60+60+40=180
therefore, angle A is 60°
Answer:
Step-by-step explanation:
The solution for a system of equations when expressed graphically is coordinate of the point where the two graphs intersect.
Answer:
the answer is 3 zz
Step-by-step explanation:
