can i get some help from anyone dats good wit word problems

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can i get some help from anyone dats good wit word problems

Mathematics
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(h(t)=-16t^2+vt+c where h is the approximate height in ft t is the time in motion in seconds v is the initial upward velocity in ft per second and c is the initial height in ft) A baseball player hits a pitched ball when it is 4ft above the ground the initial upward velocity is 80ft/s how long will it take for the ball to hit the ground???
Consider the given equation h(t)=-16t^2+vt+c. We are looking to find t, where v=80ft/s and c=4ft. h(t) represents the height when it hits the ground, that's h(t)=0. So: \[0=-16t^2+80t+4 \implies -4t^2+20t+1=0 \] Now solve the quadratic equation for t. Take only the positive value.

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Other answers:

how did u get the 2nd equation
Divide both sides by 4.
ok so how do i get t
Use the quadratic formula. You will positive value t approximately 5.05 sec.
will get*
only answers it could be is 3s,4s or 2.2s cuz its one of those riddle papers
Let me check my answer.
i though 4 was h
>.< I don't know why 5 is not among the choices.
im trippen it is 5.1 on here can u tell me how i can get it cuz idk how 2 do dis
5.1 is there and you didn't say that? >.<
yes and i didnt notice till i looked at the riddle paper
:( I redid it like 6 times.
im sorry
can u still help me
lol it's ok.. what is it that you don't understand?
after i get t=-4t^2+20t+1 what do i do
You just solve the equation for t. Are you allowed to use a calculator?
yes
but how u solve 4 t
Okay, you can solve it by your calculator.
i need steps
\[t={-b \pm \sqrt{b^2-4ac} \over 2a}={-20\pm \sqrt{20^2+16} \over -8}\]
or you can just write the equation in your calculator and it will give you the answer directly.
i remember dat fromula but where u get -20 and -8
a=4, b=20, c=1. Plug them in the equation.
ok u have 2 understand i got like 11 more problems to do and im not understanding where u getting these numbers 4rm when it comes 2 math i gotta be talked 2 like im slow so i can pick it up quick u have 2 explain how u got a b c from dat word problem the only numbers i got from the equation is -16 80 and 4 so please explain
okay, then take a=-16, b=80 and c=4. That will work exactly the same.
y u make it so difficult u like my teacher just tell me the simple answer lol so do i use dat equation 4 all these problems
hmm okay focus now.
You told me you got the first equation. This is a quadratic equation, it can always be solved by the quadratic formula, which I wrote above. The question now is what a, b and c.
ok hold on dis cant go in my calculator when it has the +-
a is the coefficient of t^2, b is the coefficient of t, and c is the constant.
just do it once with the minus, and another time with the plus.
and then take from the two final answers, the positive one.
wat was wrong with the formula they gave me dis is pissing me off
I don't know!
ok look can u tell me how to do it just using the formula they gave me i dont like dat other one it wont go in my calculator and im getting way 2 mad 2 focus
I just told you. can you please help here, at least by reading what I write?
i did read wat u wrote but u not giving me step by step instructions may be natrual 2 u but it aint 2 me im good but slow at it so all i need is someone 2 break it down one good time instead of giving me alot of info without working it completly out
Where exactly is your problem?
i dont know how to use h(t)=-16t^2+vt+c
whoops you mean the very beginning? I don't think I can help you here. I am a little bit busy. I am so sorry. I really tried, but I might be not good at explaining things.
ook
Good luck!! :)
i keep getteing 50.9 i finally figured out wat u was saying
Good to know that :)
can u help me e 5.1 answer cuz i guess im putting dis in the calculator wrog im not getting 5.1
once i use the formula u gave me is there a step after dat 2 get the 5.1
No, you have just to use your calculator correctly. Better to take it step by step, like start with the part under the square root.

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