Assuming that by "16t2" you mean 
:
First of all, let's compute the position at the two required times:


So, the ball traveled a total distance of 
, during the time 
.
The average rate of change is the ratio between these two:

 
        
                    
             
        
        
        
Answer:
849000
Step-by-step explanation:
Anahdhsiendhd
 
        
             
        
        
        
Answer:
Step-by-step explanation:
16 divided by $3.50 = 4.5
 
        
                    
             
        
        
        
Speed of trucks= x speed of trains =x-30 A loaded
        
             
        
        
        
I don’t know what answers you have but I think it’s 23.4