When will the softball hit the ground?
The height of a softball is given by f(t)=−16t^2+83t+5.2 where f(t) represents the height of the softball in feet, and t is the number of seconds that has elapsed. Round all values to three decimal places.
1.When will the softball hit the ground? ____seconds
2.When will the softball be 20 feet above the ground? Write your answers as a list, with your answers separated by (a) comma(s). ____seconds