Answer:
365
Step-by-step explanation:
alright so technically everybody says it is 365 days so there you go
Answer:

Step-by-step explanation:
We have that:

Now we can find a+b

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).
0.3 inches per hour, if I did the math correctly.