Algebra
posted by Adam .
A ball is hit straight up initially with the felocity of47 ft per second The height(h) of the softball in ft above ground after(t) seconds, Using the equasion H=16 square + 47 T + 3. How long was the softball in the air before it hit the ground?

plug in the equation y=16^2+47X+3 into a graphing calculator under the Y= button, hit graph, and where ever the graph touches the X axis, is your answer.