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Mathematics 12 Online
OpenStudy (anonymous):

Please help with Algebra 2 problem? A ferry heading directly east is transporting tourists from one side of a river to the other side. The river flows from north to south. If the speed of the ferry in still water is 20 mph and the river is flowing at a speed of 6 mph, which is closest to the ferry's resultant speed as it crosses the river? A. 14.0 mph B. 19.1 mph C. 26.0 mph D. 20.9 mph

OpenStudy (alekos):

Just use pythagoras theorem on the two speeds to get the resultant

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