Homework Help: algebra 2

Posted by Insky on Tuesday, January 29, 2013 at 4:45pm.

suppose you want to row your boat across a 3 mile wide river and row at a speed of 2 mi/hr. the current is flowing south at a rate of 1.2 mi/hr. at what angle upstream should you aim your boat so that it ends up going straight across?

algebra 2 - Reiny, Tuesday, January 29, 2013 at 5:00pm
Make a vector diagram, where the distance straight across is your resultant and represents the actual speed , the hypotenuse is 2 and the side opposite our angle is 1.2

sinŲ = 1.2/2
Ų = 36.9°

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