Find the equation of an ellipse centered at (h,k), major axis length 2a, and minor axis length 2b. (
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What is the area of a rectangle with length 10 and width 5? How does it compare to the area of a parallelogram with base 12 and height 8? What is the circumference of a circle with radius 4?
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What is the variance of a dataset with values [10, 12, 8, 11, 9]?