Near a buoy, the depth of a lake at the point with coordinates (x, y) is z
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Near a buoy, the depth of a lake at the point with coordinates (x, y) is z = 200 + 0.02x2 - 0.001y3, where x, y, and z are measured in meters. A fisherman in a small boat starts at the point (80, 60) and moves toward the buoy, which is located at (0, 0). Is the water under the boat getting deeper or shallower when he departs? Explain.
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The fisherman is traveling in the direction 8060 A unit vector ...View the full answer
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