Reply to a classmate by finding their height when t= 1, 5, and 10 seconds. Do the answers make sense? Why or why not? Be sure to show all of your calculations.

This is their problem:

H=80 feet V=125 = - 16t2+ 80t + 125

= - b b2- 4ac / 2a

= - 80 (80)2-4(-16) (125) / 2 (-16)

= -80 6400 + 8000 / -32

= -80 14400 / -32

= -80 + 120 / -32orT = -80 120/ -32

1.25or 6.25