Answer:
(x+9)^2 + (y+1)^2 = 100
Step-by-step explanation:
Since the question says diameter, we know the boundary in a circle. Therefore, we just need to find the center and radius.
The center is the midpoint of the two endpoints on a diameter.
Here, it is (-9, -1).
Therefore, the left part of the equation is (x- -9)^2 + (y - -1)^2 = (x+9)^2 + (y+1)^2.
The radius: sqrt(8^2 + 6^2) = 10
So the equation is (x+9)^2 + (y+1)^2 = 100
 
        
                    
             
        
        
        
Four different colours I believe. Because it says each ticket type will be a different colour. Therefor, adult (1), child (2), 1-day (3), 2-day (4). 
Hope this was helpful and correct! 
 
        
                    
             
        
        
        
Answer:
52 minutes
Step-by-step explanation:
it takes him 13 minutes to complete 5 so if he wants  to do 20 problems  do 20 divided by 5 (4) then do 13 times 4=52
 
        
             
        
        
        
Answer: what are you trying to ask here?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
621/87=7.13793103448
Step-by-step explanation:
I divided it and got this answer