The ball's velocity will be represented by the derivative of its distance function:

Now find the times 

 for which this is equal to 30, i.e. solve

This has two solutions, 

, but only one is positive and falls in the interval 
![[0,3]](https://tex.z-dn.net/?f=%5B0%2C3%5D)
. So the velocity reaches 30 cm/s when 

.
 
        
        
        
The shorter side is 40 in and the longer side is 64 in
        
                    
             
        
        
        
Answer:
 812
Step-by-step explanation:
add the units mL's together
 
        
             
        
        
        
Answer:
1=2/3 reduced or 4/6 full
2=8/3
Step-by-step explanation: