You would need the 3rd side length of the triangle, in order to find the area.
The distance between the trains is changing at the rate of (70 -60) = 10 mph. They will be in the same place (45 mi)/(10 mi/h) = 4.5 hours after they leave their respective cities. They will be 10 miles apart both 1 hour before that time and one hour after that time.
The trains will be 10 miles apart 3.5 hours after leaving.
They will be 10 miles apart the second time 5.5 hours after leaving.
Answer:
it would be (
y)
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
Over this interval, the change in the value of this function is:
.
The corresponding change in the value of 
:
.
The average rate of change of function 
over this interval is equal to the change in the function value divided by the corresponding change in :
.
Thus, the average rate of change of 
over the interval ![[-5,\, 2]](https://tex.z-dn.net/?f=%5B-5%2C%5C%2C%202%5D)
would be .
