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**JM0C** Ship A is sailing due south 16mph. At the same time, a second ship B, 32miles south of A, is sailing due east at 12mph. At what rate are they approaching or separating at the end of the hour. At what rate are they approaching or separating at the end of two hours? when do they cease to approach each other an how far apart are they at that instant?

i got 5.6 appoachin at 1 and 12 seperating at 2 doesnt make sense to me and i have no clue how to do the last part i also want to see how to get d(hypotouse)/dt help please