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an ellipse with intercepts(+or-5,0)and (0,+or-9),center at origin.?

a)x^2/5 +y^2/9=1
b)x^2/9 +y^2/5=1
c)x^2/81 +y^2/25=1
d)x^2/25 +y^2/81=1

2007-05-05 16:37:08 · 1 answers · asked by lena 1 in Science & Mathematics ➔ Mathematics

1 answers

D

2007-05-05 16:40:12 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋

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