Multiple Choice Question: How far apart are the foci of the curve $9x^2 + 25y^2 - 18x + 100y - 116 = 0$.

How far apart are the foci of the curve $9x^2 + 25y^2 - 18x + 100y - 116 = 0$.

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Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

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