+0  
 
0
83
2
avatar+66 

The equation $(x - 7)^2 + (y + 13)^2 = 12$ represents a circle. What is its radius?

 Feb 7, 2021

Best Answer 

 #2
avatar
0

Standard formula for a circle

 

(x-h)+ (y-k)2   = r2    

 

SO for this equation   r2 =12      so r = sqrt(12) = 2 sqrt 3

 Feb 7, 2021
 #1
avatar
0

The radius of the circle is 2.

 Feb 7, 2021
 #2
avatar
0
Best Answer

Standard formula for a circle

 

(x-h)+ (y-k)2   = r2    

 

SO for this equation   r2 =12      so r = sqrt(12) = 2 sqrt 3

Guest Feb 7, 2021

20 Online Users