Answer:
x=18
Step-by-step explanation:
Vertical angles are congruent. This means that they are equal to each other. So, to solve set them equal to each other and isolate x. First, set up the equation. Then, subtract x from both sides. Finally, add 11 to both sides and simplify.
1) 
2) 
3)
Answer:
A
Step-by-step explanation:

x + 4 = ± 2
x = -2
x = -6
Answer:
-1/2
Step-by-step explanation:
Answer:
4,096
Step-by-step explanation:
It goes like this 4 * -4=-16, 16*4=64, -64*4=256, etc.
You use the sum of the last number but flip the sin to make it opposite like if your some was + make it a negative to get your next product. Hope that made sense!!!!