The opening under a bridge is in the shape of a semielliptical arch and has a span of 82 feet. The height of the arch, at a distance of 9 feet from the center, is 28 feet. Find the height of the arch at its center. Hint: let the center of the horizontal span be (0, 0).

28.7 feet

Step-by-step explanation:

The equation of a parabola is in the form:

The bridge can be represented as:

Since the width of the bridge is 82 feet, therefore 2a = 82, a = 41

The arch is 28.7 feet from its center

asadsadsad

step-by-step explanation:

b. hannah is playing with her cousin at