Answer:
regular polygon of 9 sides has 9 lines of symmetry
Answer:
Third option:
and ![x = 2](https://tex.z-dn.net/?f=x%20%3D%202)
Step-by-step explanation:
Given:
![|-2x|=4](https://tex.z-dn.net/?f=%7C-2x%7C%3D4)
For a modulus function, if
, then,
![f(x)=\pm a](https://tex.z-dn.net/?f=f%28x%29%3D%5Cpm%20a)
Here,
, ![a=4](https://tex.z-dn.net/?f=a%3D4)
∴ ![-2x=\pm 4\\ -2x=-4\textrm{ or } -2x=4\\ x=\frac{-4}{-2}\textrm{ or }x=\frac{4}{-2}\\ x= 2\textrm{ or }x=-2](https://tex.z-dn.net/?f=-2x%3D%5Cpm%204%5C%5C%20-2x%3D-4%5Ctextrm%7B%20or%20%7D%20-2x%3D4%5C%5C%20x%3D%5Cfrac%7B-4%7D%7B-2%7D%5Ctextrm%7B%20or%20%7Dx%3D%5Cfrac%7B4%7D%7B-2%7D%5C%5C%20x%3D%202%5Ctextrm%7B%20or%20%7Dx%3D-2)
Therefore, the third option is the correct answer as the graph has
values as -2 and 2
Answer:
9000
Step-by-step explanation:
the equation to figure this out would be 180(n-2). N would equal the number of sides so you would plug it in 180(52-2). Then you end up with 180*50 which equals 9000
Y = x + 5....so we sub in x + 5 for y in the other equation
4x + y = 20
4x + x + 5 = 20
5x + 5 = 20
5x = 20 - 5
5x = 15
x = 15/5
x = 3
y = x + 5
y = 3 + 5
y = 8
solution is (3,8)