Answer:
After 900 minutes
Step-by-step explanation:
when we convert the velocities of the ships into miles/ min we get
The equations determining the distances of the ships from the port M (set at x=0) are
(for 45mph ship)
(for 36mph ship)
The solution to these equation lie at t= 900 minutes; therefore the two ships will meet 900 minutes after the departure of the first ship.
For this case we have that by definition of power properties it is fulfilled that:
We must rewrite the following function:
Using the mentioned property we have:
Solving the operation within the parenthesis we have:
Thus, the correct option is option B
ANswer:
Option B