9514 1404 393
Answer:
6
Step-by-step explanation:
6 triangles are formed by the three diagonals through the center.
The answer is 460 because if you round 450 to the nearest 10 it equals 460
Answer:
A
Step-by-step explanation:
Answer:
-8±10x
Step-by-step explanation:
you will follow BODMAS
B=bracket
O= off
D=division
M=multiplication
A=addition
S=subtraction
2×3=6
7×2=14
[6-14±10x-8]÷[x-2]
14±8=22
6-22=-16
[-16±10x]÷[x-2]=-8±10x
True, because all angles on a straight line add up to 180 deg