She would have made 37.5% of her free throws. You take 3 divided by 8.
Answer:
Area of nonagon = 1044.6 square millimetres.
Step-by-step explanation:
Let side of the nonagon is a
Given:
The perimeter of nonagon is 117 millimetres
![perimeter=9a](https://tex.z-dn.net/?f=perimeter%3D9a)
Put the perimeter value in above equation
![a=\frac{117}{9}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B117%7D%7B9%7D)
![a=13](https://tex.z-dn.net/?f=a%3D13)
So the side of the nonagon is 13
The area of the nonagon is .
![A=\frac{9}{4} a^{2} cot(\frac{180}{9})](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B9%7D%7B4%7D%20a%5E%7B2%7D%20cot%28%5Cfrac%7B180%7D%7B9%7D%29)
where a is side of the nonagon.
Put value of side in above equation
![A=\frac{9}{4} 13^{2} cot(20)](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B9%7D%7B4%7D%2013%5E%7B2%7D%20cot%2820%29)
![A=\frac{9\times 169}{4}\times 2.747}](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B9%5Ctimes%20169%7D%7B4%7D%5Ctimes%202.747%7D)
![A=\frac{1521}{4}\times 2.747}](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1521%7D%7B4%7D%5Ctimes%202.747%7D)
![A=380.25\times 2.747}](https://tex.z-dn.net/?f=A%3D380.25%5Ctimes%202.747%7D)
![A=1044.55](https://tex.z-dn.net/?f=A%3D1044.55)
Therefore, the area of the nonagon is 1044.6 square millimetre.
Answer:
64
Step-by-step explanation:
diy
Answer:
Step-by-step explanation:
We need a system of equations for this. The first sentence in the problem tells us the first equation. "Sum" means we are adding, "is" means equals. Therefore, the first equation is
x + y = 10.3
The second sentence tells us the second equation. "Difference" means to subtract. Therefore, the second equation is
x - y = 2.84
It would be best to solve this by elimination (also called addition). Line them up one over the other so the variables also line up:
x + y = 10.3
x - y = 2.84
And as you see, when you add straight down, the y's eliminate each other, leaving us with
2x = 13.14 and divide by 2 to get that
x = 6.57
Now plug that in for x to solve for y in either one of the equations. I'll use the first one:
6.57 + y = 10.3 so
y = 3.73