Answer:
The center is (-10,10)  and the radius is 4sqrt(3)
Step-by-step explanation:
(x + 10)^2 + (y - 10)^2 = 48
We can write the equation of a circle as 
(x -h)^2 + (y - k)^2 = r^2  where (h,k) is the center and r is the radius
(x-  -10)^2 + (y - 10)^2 = (sqrt(16*3) )^2
(x-  -10)^2 + (y - 10)^2 = (4sqrt(3)) ^2
The center is (-10,10)  and the radius is 4sqrt(3)
 
        
             
        
        
        
40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
        
             
        
        
        
thanks me later
gahahavshsbajavjavsjzbsjavHaba
 
        
             
        
        
        
Answer:
a straight line at an angle of 90° to a given line, plane, or surface.
Step-by-step explanation: