Answer:
<A=42°
Step-by-step explanation:
If the exterior of angle C is 126, the interior is 54.
The sum of the other two angles must be 126. (Exterior Angle Theorem)
If B is twice A, we divide 126 into thirds. This is 42.
So A is 42, B is 84, and C is 54.
Answer:
C
Step-by-step explanation:
Plug each ordered pair into the equation
A: 4 = 3(-1)-1
4=-3-1
This is false
B: 2= 3(-1)-1
2=-3-1
This is false
C: -4 = 3(-1)-1
-4=-3-1
This is true
Answer:
it's c
Step-by-step explanation:
here's some proof bud thanks
Answer: 8x+10y
Step-by-step explanation:
2(4x)= 8x
2(5y)= 10y
8x+10y