Answer:
The equation of a circle:

Step-by-step explanation:
The equation of a circle:
(where the center is known as
and the radius, known as
).
-Since you already have the center and the radius, use them for the equation of a circle:
Center: 
Radius: 

After you have the equation of a circle, simplify the radius by the exponent
:

So, you have found the equation of a circle.
Okay so this is not too hard once you get the grasp of it. What you want to do is put everything with each other giving you the answer, -3x^2 +42x^2 -147x
Answer:
i believe the answer is b
Step-by-step explanation:
The slope is -5x.
Explanation:
Rearrange the equation so it’s in y=mx+b format.
y=-5x-2/3
Answer: r=14
Step-by-step explanation:
because they are vertical angles
7r+6=8r-8
solving for r you get
r=14