Sarah kicked a soccer ball into the air with an initial upward velocity of 48 feet

per second. The height in feet of the ball above the ground can be modeled by h = –16t^2 + 48t , where t is the time in seconds after Sarah kicked the ball.

a. How long was the ball in the air before it returned to the ground?
b. Find the height of the ball after 2 seconds.

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list