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Find g3; via implicit differentiation: xzy + 2x 2 3y2 A car is traveling south toward a particular city at 160 km / h while a truck is traveling east away from the city at 140 km/ h. At time t = 0 the car is 20 km north of the city and the truck is 30 km east of the city. At what rate is the distance between the vehicles changing at this time? Find the absolute minimum and maximum of f (x) 2 ix'; 2x2 + 3 on the interval {-1, 3]. Find and classify all relative extremaa of: Evaluate