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PART FOUR. Extra Credit aoiut a boat that has a top speed of 4 m/s, you want to sail oe bank to a point 4 km upstream (in the direction 10. (2 points) During the rainy 2 points) During the rainy can be as fast as 6 km/h. In partic that ban season, a particular river can be 30 km across and the current a straight path from a point on as 6 km/ ppposite the opposite the current). How long Pythagorean identity, sin20 +cos201 take you . How lon ythagoree eity sing, w i it take yo to make that trip? You may recall the
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