1. I think is 4/5
2. Is 152
and
3. Is 1/12 (im not sure about this one)
Hope this helped!
Well flat means open so 180°
180° - 50° = 130° is the answer
This answer would be D because an equilateral triangles angles are all the same
Answer:
point U
Step-by-step explanation:
Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4
Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.