Correct answer is C.
Formula for the sum of interior angles of a regular polygon is
![S_n=(n-2)180^o](https://tex.z-dn.net/?f=S_n%3D%28n-2%29180%5Eo)
, where
![S_n](https://tex.z-dn.net/?f=S_n)
is the sum of interior angles and
![n](https://tex.z-dn.net/?f=n)
is the number of sides of the regular polygon. Check by substituting the given values.
The measure of an interior angle of a regular polygon is equal to
![\frac{S_n}{n}](https://tex.z-dn.net/?f=%20%5Cfrac%7BS_n%7D%7Bn%7D%20)
.
The equation
![\frac{S_n}{n}=\alpha](https://tex.z-dn.net/?f=%20%5Cfrac%7BS_n%7D%7Bn%7D%3D%5Calpha%20)
, where
![\alpha](https://tex.z-dn.net/?f=%5Calpha)
is the measure of the interior angle of a regular polygon, must have positive integer solution for n. Check for
![\alpha=150^o](https://tex.z-dn.net/?f=%5Calpha%3D150%5Eo)
.
Step-by-step explanation:
4 .5 ×60min
4.5×60×60sec
16200 sec
Answer:
<em>Correct choices: a) 5:12 and c) 7 to 12</em>
Step-by-step explanation:
The ratio of red beads to pink beads is 5:7. This means that for every 5 red beads there are 7 pink beads.
It also means that for every 12 beads there are 5 red beads and 7 pink beads.
Therefore, there are two part-to-whole ratios:
5:12 red beans to total beads, and
7:12 pink beans to total beads
Correct choices: a) 5:12 and c) 7 to 12
Answer:
Step-by-step explanation:
You need to first find what x equals before you can solve the equation.