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Find the standard form of the equation of the ellipse with the given characteristics.

Foci: (0, 0), (0, 8); major axis of length 18

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the center is midway between the foci, at (0,4)
a = 18/2 = 9
b^2 = 9^2 - 4^2 = 65
so the equation is
x^2/65 + (y-4)^2/81 = 1

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