The speed is the ratio between the distance and the time:

Data:
d=6343miles
t=9h

Then, the plane traveled at a speed of 704.77 miles per hour.

has gradient

which at the point (-1, 4, 3) has a value of

I'm not sure what the given direction vector is supposed to be, but my best guess is that it's intended to say
, in which case we have

Then the derivative of
at (-1, 4, 3) in the direction of
is

Right one unit and up ten units. Hope this helps!
Answer:
E?
Step-by-step explanation:
I'm sorry of this answer is wrong
Answer:
de turquesa en la cueva surena
Step-by-step explanation: