SOLUTION: The arch of a bridge is in the shape of a semi-ellipse, with its major axis at the water level. Suppose the arch of 22 ft high in the middle, and 100 ft across its major axis. How

Question 1186544: The arch of a bridge is in the shape of a semi-ellipse, with its major axis at the water level. Suppose the arch of 22 ft high in the middle, and 100 ft across its major axis. How high above the water level is the arch, at a point 30 ft from the center (horizontally)? Round off to 2 decimal places.
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

With the center of the ellipse at the center of the semi-ellipse, the given information gives the equation of the ellipse as

Plug in x=30 and solve for y....

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