Answer:
4x-10
Step-by-step explanation:
Multiply both by 2, 2x times 2 is 4x, and 5 times 2 is 10, so it becomes 4x-10.
 
        
             
        
        
        
Answer:
The angle will be 130 degrees
Step-by-step explanation:
50 at the center translates to 50 at the outer rim.
this means it will be 310-50 divided by 2 
260 divided by 2 equals 130
 
        
             
        
        
        
Answer:
x = 54
Step-by-step explanation:
The two angles are across a vertex and are therefore equal. Set the two angles equal and solve for x:
2x+2 = 3x - 52
      2 = x - 52
     54 = x
 
        
             
        
        
        
Answer:
(i)
time to bounce in one direction is 0.75 sec
(ii)
time to bounce in other direction is 1.5 sec
(iii)
total time is 2.25 sec
Step-by-step explanation:
Time to bounce in one direction:
we can see that height is increasing till t=0.75sec
so, time to bounce in one direction is 0.75 sec
Time to bound in other direction:
we can see that height is decreasing from t=0.75 to 2=2.25 sec
so, time to bounce in other direction is 2.25-0.75 
=1.5 sec
Total time :
We know that 
total time = (time to bounce in one direction)+(time to bounce in other direction)
now, we can plug values
total time =0.75+1.5=2.25 sec
 
        
                    
             
        
        
        
Answer:
the answer is C.
Step-by-step explanation:
the sum of the problem is 8.164.... so 8/C is the answer