Answer:
C
Step-by-step explanation:
Answer:
Sine of A should be 5/13
Step-by-step explanation:
Hope this Helped
Plog in to y=ax+b and u will find a b
If the original angle is x degrees then its supplement is 180 - x degrees.
we have the equation:-
180 - x = 3x + 20
160 = 4x
x = 40
The original angle is 40 degrees and its supplement is 140 degrees