What is the result of adding the vectors (3, -2) and (-5, 4)?
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Question: If a car travels at a constant speed of 60 mph for 3 hours and then decreases its speed to 40 mph for the remaining distance, how long does it take to travel 300 miles?
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Math question: What is the derivative of the function f(x) = 3x^4 + 2x^3 - 5x^2 + 7x - 2?