Answer:
Step-by-step explanation:
Second option correct
Answer:
7.44
Step-by-step explanation:
When you say opposite, I assume you mean the positive version of -7.44
So simply take out the negative to get 7.44
Answer:
4-(-7)
The distance, as counted on the number line is 11
Step-by-step explanation:
4-(-7) = 11 true
|-7+4| = 3 false
4+(-7) = -3 false, distances can never be negative
Answer:
9 sides
Step-by-step explanation:
Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon
Interior angle + exterior angle =
180°
Let x be the exterior angle.
Exterior angle = 180-x = 100 + x
= 180 - 100 = x + x
80 = 2x
x = 80/2
x = 40
Number of sides of the polygon =
= 360°/Exterior angle
Exterior angle = 40°
= 360/40 = 9 sides