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Unformatted text preview: b and the two sides of equal length each measure 30 centimeters. If b is increasing at a rate of 3 centimeters per second, how fast is the area changing when the base measures 20 centimeters? 4) A construction worker pulls a 5 meter plank up the side of a building by means of a rope tied to one end of the plank. The worker pulls the rope at a rate of 0.15 meters per second. How fast is the lower end of the plank nearing the wall when it is 2.5 meters from the wall? 5) A baseball diamond has the shape of a square with sides 90 feet long. A player is running from second base to third base at a speed of 28 feet per second. At what rate is his distance from home plate changing when he is 30 feet from third base?...
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 Spring '07
 Prevendoski
 Calculus, Geometry, Orders of magnitude, centimeters

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