Answer:
Option D.75°
Step-by-step explanation:
we know that
The sum of the interior angles of a regular dodecagon is equal to
![S=(n-2)*180](https://tex.z-dn.net/?f=S%3D%28n-2%29%2A180)
where
n is the number of sides
In this problem
n=12 sides
substitute
![S=(12-2)*180](https://tex.z-dn.net/?f=S%3D%2812-2%29%2A180)
![S=1,800\°](https://tex.z-dn.net/?f=S%3D1%2C800%5C%C2%B0)
Find the measure of each interior angle
Divide the sum of the interior angles by the number of sides
![1,800\°/12=150\°](https://tex.z-dn.net/?f=1%2C800%5C%C2%B0%2F12%3D150%5C%C2%B0)
The measure of the angle formed by the radius and the side of a regular dodecagon is half the measure of the interior angle
therefore
![150\°/2=75\°](https://tex.z-dn.net/?f=150%5C%C2%B0%2F2%3D75%5C%C2%B0)
(3,9)(5,15)
slope = (15 - 9) / (5 - 3) = 6/2 = 3
y = mx + b
slope(m) = 3
(3,9)...x = 3 and y = 9
sub and find b, the y int
9 = 3(3) + b
9 = 9 + b
9 - 9 = b
0 = b
so ur equation is : y = 3x + 0....can be written as y = 3x.
after 12 months...
y = 3x...x = 12
y = 3(12)
y = 36 inches
9:60 is one hours
it takes 15 mins to get to 60
47-15=32
9:45+47=9:45+15:32=10:00+32=10:32 AM
Answer:
x≤−11
Step-by-step explanation:
−99≥18x−9x
−99≥9x
−
9
99
≥x
−11≥x
x≤−11