Answer:
(x+2)^2 + (y-4)^2 = 65
Step-by-step explanation:
r^2 = (4-(-4))^2 + (-1-(-2))^2 = 65
center = (-2, 4) so you add 2 to x and subtract 4 from y
 
        
             
        
        
        
Question:
You are in a bike race. When you get to the first checkpoint, you are 2/5 of the distance to the second checkpoint. When you get to the second check point, you are 1/4 of the distance to the finish. If the entire race is 40 miles, what is the distance between the start and the first check point?
Answer: 4 miles 
Step-by-step explanation:
Let distance between start to first checkpoint = x
First checkpoint to second checkpoint = 2/5 of x
Distance of start to checkpoint 1 = ( 2/5 of start to checkpoint 2) 
Distance of start to checkpoint 2 = (1/4 of start to finish) 
If start to checkpoint 2 = 1/4 of start to finish
Then, 
Distance of start to checkpoint 1 = ( 2/5 * 1/4 of start to finish) 
Distance of start to checkpoint 1 = 2/20 of start to finish = 1/10 of start to finish
Entire race = 40 miles = distance from start to finish
1/ 10 of 40
= ( 1/10) × 40
= 4 miles 
 
        
             
        
        
        
-1.0, -3/4, 0.25, 3/2
hope this helps :D
        
                    
             
        
        
        
Answer:
13/5 which is 2.6 so A.
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.