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Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?
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One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.
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Mathematics, 21.06.2019 19:30
Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8
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How many acute angles does a decagon have...
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