Answer:
D
Step-by-step explanation:
Solution: The speed of old freight train is 0.5 miles per minute and the speed of new dart express train is 1.5 miles per minute.
Explanation:
Let the speed of old freight train is x miles per minute and the speed of new dart express train is y miles per minute.
It is given that the speed of the dart express train is three times faster than the freight train. So, it can be written as,
....(1)
The trains are moving towards the opposite directions, therefore the distance between them is increased at the speed of
miles per minute.

The distance between both train in 15 minutes is represented by
.
According to the given information the distance between trains is 30 miles in 15 minutes.


Use equation (1) and put 



Put this value in equation (1), to find the value of y.


Therefore, the The speed of old freight train is 0.5 miles per minute and the speed of new dart express train is 1.5 miles per minute.
Answer:
false
Step-by-step explanation:
Answer:
i think the answer is B
Step-by-step explanation:
hope this helps you ;)
The figure attached shows the graph of the function with the two asympotes.
The formulae of those asympotes are:
y = 3, and x = 2.This is how you work to find them.
1) The function will have
vertical asympotes where the limit grows indefinetly (approach +/- ∞).
2) That happens for
x = 2, where
the function is not defined but it grows indefinetly toward infinity (if you come from the right side) or toward negative infinity (if you come from the left side). So, the vertical asymptote is the line x = 2.
3) The function will have a
horizontal asymptote if the function tends to a constant value as x approaches infinity or negative infinity.
4) In this case, you find that
the limit of the function when x appraches - ∞ or +∞ is 3. That results in
one horizontal asymptote which is y = 3.