Answer:
Step-by-step explanation:
Given
(-2,-1) and (3,9).
Required
Determine the line equation
First, we calculate slope (m)
Where
So, we have:
The equation is then calculated using:
Open bracket
Subtract 1 from both sides
Answer:
8 sides
Step-by-step explanation:
let x be the exterior angle then 3x is the interior angle
interior angle + exterior angle = 180° , then
x + 3x = 180
4x = 180 ( divide both sides by 4 )
x = 45
the sum of the exterior angles of a polygon = 360°
since the polygon is regular with each exterior angle = 45°, then
number of sides = 360° ÷ 45° = 8
I hope my explanation helps
Answer:
60
Step-by-step explanation:
45 divided by 9 is 5. So you multiply 4 times 5. Which equals 20. So 20 plus 45 is 65. Hope you understand it.
