Mathematics, 21.10.2020 16:01 hanjonez

A toy cannon ball is launched from a cannon on top of a platform. The equation h(t) = –5t↑2 + 20t + 4 gives the height h, in meters, of the ball t seconds after it is launched. What equation can be used to tell whether the ball reaches a height of 12 m?

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A toy cannon ball is launched from a cannon on top of a platform. The equation h(t) = –5t↑2 + 20t +...