The flight of a soccer ball is modeled by h(t) = –16t2 + 40t What is the maximum height the ball reached?

How long did it take the ball to reach its maximum height?

How long did it take for the ball to fall back to the ground?

How do i do this? i don’t understand

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct