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1.Find an equation of an ellipse satisfying the given conditions. Foci at (0, -6), (0, 6);vertices at (0, -7), (0, 7) 2.A field microphone used

1.Find an equation of an ellipse satisfying the given conditions.

Foci at (0, -6), (0, 6);vertices at (0, -7), (0, 7)

2.A field microphone used at a football game has a parabolic cross section and is 18 in. deep.The focus is 4 in. from the vertex.Find the width of the microphone at the opening.

Round to whole number.

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