A castle entrance has walls that can be modeled by the equation x^2/10^2 - y^2/30^2 = 1 with units in feet. How wide is the entrance where the walls are closest together? 10 ft 20 ft 30 ft 60 ft - QAmmunity.org

A castle entrance has walls that can be modeled by the equation x^2/10^2 - y^2/30^2 = 1 with units in feet. How wide is the entrance where the walls are closest together? 10 ft 20 ft 30 ft 60 ft

asked Sep 2, 2022 53.3k views

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