Answer:
x=-2
Step-by-step explanation:
-9+1=-8 so 2x squared =-8
x=-2
Answer:
B
Step-by-step explanation:
Because in this equation in bracket -2 always go on right if there is positive 2 than it goes left.
And 3 goes up because it is positive. in negative it goes down
1. C. Concave pentagon
2. A. 1620°
b/c (11 - 2) × 180 = 1620
3. B. 165°
b/c (24 - 2) × 180 ÷ 24 = 165
4. A. 160°
b/c (18 - 2) × 180 ÷ 18 = 160
A.t is less than or equal to 6