1. Given
2. Definition of Supplementary Angles
3. First Substitution
4. Subtraction property of Equality
5. Second Substitution
6. Exterior Side in Opposite Rays
7. If corresponding angles are equal, then lines are parallel
Step-by-step explanation:
-3(-x -3y) = 3( x +3y) = 3x+9y
Answer:
3/11
Step-by-step explanation:
it is 3/11 because you do y1-y2 divided by x1-x2
All three angles on a triangle always equal 180°.
Example: 100°+40°+40°=180°
102+39=141°
180-141=39°
x = 39°
Answer:
the answer is 4.
Step-by-step explanation:
2×6= 12
12/3=4
