The height (in meters) of a shot cannonball follows a trajectory given by \(h(t) = -4.9^2 + 14t - 0.4\) at time \(t\) (in seconds). As an improper fraction, for how long is the cannonball above a height of \(6\) meters?
Solving for when the quadratic is 6 gives you an answer of 4/7.
sorry, but that's incorrect.
