What is the speed in meters per second if a car travels a distance of 1000 meters in 25 seconds?
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What is the maximum value of the function f(x) = -2x^2 + 5x - 3 within the interval [-1, 3]?
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What is the equation of an ellipse with a major axis parallel to the y-axis, center at (0,0), a vertical major axis length of 8, and a vertical minor axis length of 4?