Question: An object is projected up into the air. The height, h in metres, of the object can be modelled by the function h= -5t+19t+4 where

An object is projected up into the air. The height, h in metres, of the object can be modelled by the function h= -5t+19t+4 where t is the time in seconds after the object is sent upward.

The maximum height that the object reaches, to the nearest tenth, is ____ metres.

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