Answer:
the "acceleration" is -15m/s (it's negative because it is slowing down, not speeding up[it might just be a positive 15m/s if it is called deceleration and not acceleration])
Step-by-step explanation:
30m/s (starting speed)/2 (the number of seconds it took to stop from 30m/s
 
        
             
        
        
        
Since the common difference is 6, we can assume that the sequence is arithmetic, with rule
T(n)=6n+5  where T(1)=11
T(9)=6(9)+5=59
        
             
        
        
        
Answer:
53 I believe 
Step-by-step explanation:
add all then divide by how much numbers are there 
 
        
             
        
        
        
The angle passes 90 degrees plus an additional 55 degrees 
m
        
             
        
        
        
It depends on the function