10. A rectangular object 30-ft wide is to pass under a parabolic arch that has a width of 80-ft at the base and a height of 25-ft at the center. If the vertex of the parabola is at the top of the arch, what maximum height should the rectangular object have? a. 21.48 ft. b.19.52 ft. c. 22.56 ft. d. none of these
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The parabola has its vertex at the top of the arch (0, 25), with width of 80-ft at the base. Since this is a downward-facing parabola, we can use the form y = -a(x-h)² + k where (h,k) is the vertex (0,25). Show more…
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