Answer: 10 units
Step-by-step explanation:
Use the distance formula(√(x1-x2)^2+(y2-y1)^2)

Thus, the radius of the circle is 5.  Because the diameter is 2r, the diameter = 2(5) = 10
Hope it helps <3
 
        
                    
             
        
        
        
Answer:
37.95
Step-by-step explanation:
55% of $69
so 0.55 x 69 = 37.95
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
y>2x-4
y<2x-1
y<4x-4
 
        
                    
             
        
        
        
Answer:
29
Step-by-step explanation:
Range is largest number subtracted with the smallest number. So it will be 
63 - 34 which will give you 29
 
        
                    
             
        
        
        
Answer: 30 dominoes in total.
 
Step-by-step explanation:
Each line is 21 inches long.
the space between dominoes is 1 + 1/2 inches.
(assuming that the distance includes the domino itself) Now, we need at least two dominoes to see this distance,
The we have N + 1 dominoes per line, and the distance is:
N*(1 + 1/2)inches = 21 inches
If we find N, we can find the number of domineoes in each line:
N = 21/(1 + 1/2) = 14
This means that we have 14  + 1 = 15 dominoes in each line, and we have two lines, so we have 30 dominoes in total.