

keep in mind, that "t" is the time when the train at A station, left towards B station
they met, at some time "t", and by the time that happened, train from A
which started 3 hours earlier, had already covered "d" distance,
whatever that is
and the train coming from B, covered, 600-d, or the difference
That’s really nice man. I’m sure she’ll love it

The formula of the sum of a geometric sequence:

We have:

substitute:

Answer: C. -5460
Answer:
True
Step-by-step explanation:
Answer:
I think 1/2 divided 1/2 is equal to 1
Step-by-step explanation:
I put in into the calculator and it said 1