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Which is the equation of an ellipse with directrices at x = Β±4 and foci at (2, 0) and (β2, 0)?
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The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?
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You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up
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Simplify the expression. a5 β 3b9 β 6a...
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