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Unformatted text preview: speed of 6 m/s. Jill will row across the water at a speed of 3 m/s. How should Jack choose the starting and ending points of the race to win by as large a margin as possible? 6. A boat leaves a dock at 2:00 PM and travels due south at a speed of 20 km/hr. Another boat has been heading due east at 15 km/hr and reaches the same dock at 3:00 PM. At what time were the two boats closest together? 7. A Norman window has the shape of a semicircle on top of a rectangle. If the perimeter of the window is 30 ft, ﬁnd the dimensions of the window so that the greatest possible amount of light is admitted. 2...
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This note was uploaded on 03/27/2012 for the course MATH 1a taught by Professor Benedictgross during the Fall '09 term at Harvard.
 Fall '09
 BenedictGross
 Math

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