Answer:
0.82 m/s^2
Step-by-step explanation:
Given data
initial velocity=20m/s
Final velocity= 30m/s
Time = 12.2s
Applying the formula 
a= v-u/t
a= 30-20/12.2
a= 10/12.2
a= 0.819
a=0.82 m/s^2
 
        
             
        
        
        
Assuming she set up the problem vertically, she began subtracting from the left, instead if the right.
        
                    
             
        
        
        
Answer:
6/2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
20√2 meters (approximately 28.28 m)
Step-by-step explanation:
It may help to make a diagram. Because this is a 45 45 90 triangle, you can use those rules to help solve. 
 
        
             
        
        
        
Answer:
−
364
z
+
10
Step-by-step explanation: