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14-09-2022
Mathematics

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An arch in the shape of the upper half of an ellipse supports a bridge that spans a distance of 80 ft. The maximum height of the arch is 30 ft. To the nearest tenth of a foot, what is the height of the arch 28 ft from the center?
A. 14.4ft
B. 21.4 ft
C. 28.1ft
D. 29.7 ft

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