I would just like assistance with the problem, if possible. If a stone is tossed from the top of a 190 meter building, the height of the stone as a function of time is given by h(t)=-9.8t^2-10t +190, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth's place; include units in your answer.

Question

I would just like assistance with the problem, if possible.  If a stone is tossed from the top of a 190 meter building, the height of the stone as a function of time is given by h(t)=-9.8t^2-10t +190, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth's place; include units in your answer.

saifoo.khan · Answer

i can do that. :D

anonymous · Answer

lol, can you help me through it, show me the ropes?

saifoo.khan · Answer

in 1 sec.

saifoo.khan · Answer

h(t)=-9.8t^2-10t +190
190=-9.8t^2-10t +190

-9.8t^2 - 10t = 0

saifoo.khan · Answer

t = 1.02 seconds.
ot
t = 0 secs

anonymous · Answer

So how would you check that? there is not three numbers. Would it be
(-4.9t+-5)(-4.9t-5)
?