Mathematics, 24.02.2020 18:47 hallmansean04

An astronaut on the moon drops a tool from the door of the landing ship. The quadratic function f(x)=-2x^2+10 models the height of the tool, in meters, after x seconds. How long does it take the tool to hit the surface of the moon? Round your answer to the nearest tenth.

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An astronaut on the moon drops a tool from the door of the landing ship. The quadratic function f(x)...