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An arch is in the form of a semi-ellipse, with its major axis as the span. If the span is 80 feet and the height

An arch is in the form of a semi-ellipse, with its major axis as the span. If the span is 80 feet and the height is 30 feetwrite the standard equation.x²/900+ y²/1600=1x²/1600+ y²/900=1x²/6400+ y²/900=1

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