54,384 views
34 votes
34 votes
HELP PLEASEEEE!!!! ASAP

HELP PLEASEEEE!!!! ASAP-example-1
User Dale
by
2.9k points

1 Answer

18 votes
18 votes

Answer:

6.22 sec

Explanation:

h(t) = 105t-16t^2

For values of t for which height will be 34 feet can be obtained by substituting 34 in place of h(t) and solving for t

34=105t-16t^2, using quadratic formula we have t=1/32*(105±sqrt(8849)) which translates to - 0.34sec and 6.22sec but as time can't be negative, time is 6.22sec

User Kostas Dimakis
by
2.9k points