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Mathematics 14 Online
OpenStudy (anonymous):

Write the standard equation of each Ellipse. Find the center, vertices, co-vertices and foci. 1. 25x2 + 9y2 = 225 2. 49x2 + y2 = 49 3. x2 - 2x + 9y2 - 8 = 0 4. x2 + 4y2 - 18x -8y + 81 = 0

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