Mathematics, 12.05.2021 19:00, merunikitty1226

PLEASE PLEASE PLEASE HELP The opening of a train tunnel is shaped like a parabolic arch. The height of the opening is defined by the function h(x) = 6 - 0.4x ^ 2 , where x is the horizontal distance in meters from the centerline of the tunnel How wide is the tunnel's opening at ground level ? Round your answer to the nearest tenth of a meter .

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PLEASE PLEASE PLEASE HELP The opening of a train tunnel is shaped like a parabolic arch. The height...