
Well, I am not sure if you are allowed to use physics. that 16 in your equation is negative gravity/2 where g = 32 ft/s^2
If you are allowed to do it that way it is easy
v = 148  32 t
at top v = 0
so at top
t = 148/32 = 4.625 seconds to top
then h = 16(4.625)^2 + 148(4.625) + 30
= 342 + 684 + 30
= 372 ft
you could also use calculus on your equation to get t at max h
at top,
dh/dt = 0 = 32 t + 148
leading to the same old t
If you do not know calculus then you must resort to completing the square on that parabola to find the vertex
h = –16t² + 148t + 30
t^2  9.25 t  1.875 = = h/16
t^2 9.25 t = h/16 + 1.875
t^2  9.25 t + 21.4 = h/16 + 23.3
(t  4.63)^2 = (1/16)( h  372)
lo and behold, t = 4.63 and h = 372 again

thanks Jim!!!!!
If anyone found that confusing what he means to say is that if your in connexus the answer is d.

sadly u have to find the answers urself i searched everywhere


lmao @boo

Thank you Jim do much ;D

Damon literately gives you the answer and Jim has the correct answer. By the way Damon your name is from Vampire Diaries loving it.

Thanks both Damon and Jim. Both had correct answer. Both should be appreciated.


@Approved I love Damon Salvatore #DelenaAllTheWay

we love both JIM and DAMON

41 question exam anyone?

36 for me but its just part 1 and i have 3 parts


Thanks 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍 jim

Appreciate it

Still D
Reaches a maximum height of 372.25 feet after 4.63 seconds.