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Unformatted text preview: y = Find the orthogonal trajectories of the family of curves. Use a graphing device to draw several members of each family on a common screen. x 2 y 2 = k This is a family of ellipses. This is a family of parabolas. This is a family of concentric circles. This is a family of hyperbolas. This is a family of straight lines. 6. 3/3 points All Submissions Notes Question: SCalcCC2 7.3.36. A tank contains 1000 L of pure water. Brine that contains 0.05 kg of salt per liter of water enters the tank at a rate of 5 L/min. Brine that contains 0.04 kg of salt per liter of water enters the tank at a rate of 10 L/min. The solution is kept thoroughly mixed and drains from the tank at a rate of 15 L/min. (a) How much salt is in the tank after t minutes? kg (b) How much salt is in the tank after 30 minutes? 15.7 kg...
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This note was uploaded on 06/24/2009 for the course MA 241 taught by Professor Mccollum during the Spring '08 term at N.C. State.
 Spring '08
 Mccollum
 Equations

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