Answer:
C
Step-by-step explanation:
Hey There so the first step of this problem is to find the formula for circumference
![C=2\pi r](https://tex.z-dn.net/?f=C%3D2%5Cpi%20r)
given some of the values we can form an equation to solve for the radius (r)
![31.4=3.14(2)r\\3.14(2)=6.28\\31.4=6.28r\\\frac{31.4}{6.28} =5](https://tex.z-dn.net/?f=31.4%3D3.14%282%29r%5C%5C3.14%282%29%3D6.28%5C%5C31.4%3D6.28r%5C%5C%5Cfrac%7B31.4%7D%7B6.28%7D%20%3D5)
so we can conclude that the radius is equal to 5
Answer:
hope that helps!!!
Step-by-step explanation:
the h is 125^2
Equation 1:
x = (5y+11)/2
Substitute equation 1 to 2:
-2((5y+11)/2)+ 3y=-9
-2/2 = -1 thus -1(5y+11)
Continue...
-(5y+11)+3y=-9
-5y-11+3y =-9
(-5+3)y= 11-9
-2y = 2
y=-1
Substitute y into equation 1:
x=(5*-1+11)/2
x = 6/2=3
So y=-1 and x =3