What is the limit as x approaches 2 of (3x^2 - 5x + 2)/(x-2)?
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What is the variance of a data set: {10, 12, 14, 16, 18} ?
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What is the equation of an ellipse with a major axis of length 10 units, a minor axis of length 6 units, center at (0,0), and major axis parallel to the x-axis?