The sum of exterior angles of ANY regular polygon is 360.
For example, the exterior angle of a square is 90 degrees time 4 vertices = 360 degrees.
The exterior angles of an equilateral triangle is 180-60=120, times 3 vertices = 360.
...and so on.
So we can use this fact to calculate the exterior angle of a REGULAR decagon, which is therefore 360/10=36 degrees.
According to the diagram, this angle (36 degrees) is the complement of x, so x=90-36=54 degrees.
Next, the interior angle is just the supplement of the exterior angle, namely
y=180-36=144 degrees.
BTW, if you would grant my wish, please put a Micky Mouse as your profile picture, and that, of course.....until you change it next time! :)
-1x(6x - 8)
= -x(6x - 8)
= -x(6x) - x(-8)
= -6x^2 + 8x
Answer:
Jayln rode 12.4 miles/hour.
Step-by-step explanation:
The question is asking for a unit rate for the speed in miles per hour that Jayln rode her bike over her 33.48 mile ride. Since we know that she rode a total of 33.48 miles and the total time was 2.7 hours, we can set up our ratio as 33.48/2.7 or miles/hours. In order to find unit rate, or the number of miles per one hour, we need to divide: 33.48 ÷ 2.7 = 12.4. So, 12.4 mph is Jaylyn's speed.
Answer:
4
Step-by-step explanation:
