Parabolic doorway A doorway has the shape of a parabolic
Chapter 2, Problem 2.6.51(choose chapter or problem)
Parabolic doorway A doorway has the shape of a parabolic arch and is 9 feet high at the center and 6 feet wide at the base. If a rectangular box 8 feet high must fit through the doorway, what is the maximum width the box can have?
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