Answer:
Remember that the maximum rate of change of f at a point u is the length of the of the gradient vector evaluate in u, and the direction in which it occurs is in direction of the gradient vector evaluate in u.
The gradient vector of f is 

Then, the maximum rate of change is in the direction of (5,8).
 in the direction of (5,8).
 
        
             
        
        
        
Answer: 1249 hrs
Step-by-step explanation:
Sophia walked for 12 km to get to her aunt's house. 
She did this at a speed of 5km/h which means that the time taken was:
Time = Distance / Speed
= 12 / 5
= 2.4 hours
2.4 in hours:
= 0.4 * 60 minutes 
= 24 minutes 
= 2 hours 24 minutes 
If she left at 1025, she would arrive at:
= 1025 + 2 hours 24
= 1249 hrs
 
        
             
        
        
        
Answer:
42.9
Step-by-step explanation:
20% of 50 is 10
so its 40
40 + taxes
40 + (40*.0725)
 
        
             
        
        
        
Step-by-step explanation:
I think so option b Is answer 
 
        
             
        
        
        
Answer: Polynomial 
Step-by-step explanation: