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Mathematics 18 Online
OpenStudy (anonymous):

y=-16t2 + 486

OpenStudy (anonymous):

what is it asking for ?

OpenStudy (anonymous):

make u qn clear

OpenStudy (nincompoop):

what is the velocity of the object when it hits the ground

OpenStudy (anonymous):

Sorry didnt type the whole thing, The function y=-16t2+ 486 models the height y in feet of a stone t seconds after it is dropped from the edge of a vertical cliff. How long will it take to hit the ground?

OpenStudy (nincompoop):

laughing out loud

OpenStudy (anonymous):

t= 0

OpenStudy (anonymous):

it will take 486

OpenStudy (nincompoop):

? someone is teaching the wrong thing

OpenStudy (anonymous):

when its on the ground t always = 0

OpenStudy (nincompoop):

when it hits the ground t is not zero height is zero

OpenStudy (anonymous):

sorry i meant y

OpenStudy (anonymous):

since they were no question lol

OpenStudy (anonymous):

i think dats how u do it. y=16t2+484 y=16(0)2 y=2+486 y=488

OpenStudy (nincompoop):

488 what?

OpenStudy (nincompoop):

seconds, minutes, hours, days?

OpenStudy (anonymous):

y is the height ryt

OpenStudy (nincompoop):

this is the question How long will it take to hit the ground?

OpenStudy (nincompoop):

486 is the height and this is presumably in feet but it will never take 486 seconds for an object to hit the ground from that height. we all know that it accelerates at a rate of -9.8 m/s^2

OpenStudy (anonymous):

since y = 0 so the whole equation is = 0 .. so lets say 16t^2+486 then move 16t^2 to the other side it will be 16t^2 = 468 then divide

OpenStudy (anonymous):

how cum its -9.8....?

OpenStudy (anonymous):

468 by 16 = 30.375 then take the root from both side to get t = root 30.375

OpenStudy (anonymous):

It is multiple choice and the possibe answers are 7.79, 11.02, 0.25, and 5.51

OpenStudy (anonymous):

its 5.51

OpenStudy (anonymous):

yes i agree wid them

OpenStudy (nincompoop):

how can you agree with us when you are giving the wrong solution?

OpenStudy (anonymous):

i was confused a bit thn it worked out at last

OpenStudy (anonymous):

u guys r so slow in typing lol

OpenStudy (anonymous):

y=-16t^2+486 >>> 0=-16t^2+486 >>> 16t^2=486 >>> t^2=486/16>>>> t^2= 30.375>>> take the root from both sides >> t = 5.51 :)

OpenStudy (anonymous):

ok be fast and try to answer right next time lol

OpenStudy (nincompoop):

-9.8 m/s^2 is the acceleration due to gravity, a constant. but that is in metric system. I am just pointing out that it cannot take an object to fall from 486 ft 486 seconds to hit the ground.

OpenStudy (anonymous):

lol :D he should ave writen t to the power of 2 nt t2 n so dats y i gt the answer wrong doing it wid t2

OpenStudy (anonymous):

but u should know that the question was not even there lollL

OpenStudy (anonymous):

heheheh ......u look lost dah

OpenStudy (anonymous):

i gues keyboard isnt working properly

OpenStudy (anonymous):

lollllzzzzz

OpenStudy (anonymous):

hahaha noww huuuh

OpenStudy (anonymous):

heheh it took u 100 years jas to write that

OpenStudy (anonymous):

no i was thinking what should i say hhhhhh

OpenStudy (anonymous):

hehehehh Ooooooopppps

OpenStudy (anonymous):

sometime i take more than that to think loool

OpenStudy (anonymous):

surely ma hair ll turn in to white lol ;P

OpenStudy (anonymous):

omg he or she didnt even say thx for the answer looool

OpenStudy (anonymous):

i will take my answer loooool

OpenStudy (anonymous):

hehehehehehe OMG

OpenStudy (anonymous):

hhhhhhh u r welcome

OpenStudy (anonymous):

HO HO HO u cum cum

OpenStudy (anonymous):

oh, thks srry wasnt paying attention

OpenStudy (anonymous):

dun pay attention pay cash lol

OpenStudy (anonymous):

i was kiddin looool .. omg maheen hahahahahhahahahahahhaha

OpenStudy (anonymous):

eheheheh wen was i srs haaa :P

OpenStudy (anonymous):

looool

OpenStudy (anonymous):

ur a dubia boy if u didnt type faster this time thn ur punihsed....uur punishment is to send me baqlawas lol

OpenStudy (anonymous):

yhhh...i agreee with maheen ;)

OpenStudy (anonymous):

half five babe ;)

OpenStudy (anonymous):

hhhhhh omg i love baqlawaaaaaaas <3

OpenStudy (anonymous):

half five ;)

OpenStudy (anonymous):

me tooo :)

OpenStudy (anonymous):

heheh ur worse thn me man

OpenStudy (anonymous):

lol :D

OpenStudy (anonymous):

do i type that slow ? i thought im faster than mickey mouse

OpenStudy (anonymous):

lol :D ...yh u do ....

OpenStudy (anonymous):

dude mention snail lol

OpenStudy (anonymous):

may be cuz im sleeepyyyyyy thats may be loool

OpenStudy (anonymous):

i dont think so ;)

OpenStudy (anonymous):

i gues u love dat word lol wheer did u buy it from ha ehehhe

OpenStudy (anonymous):

they should change the name of this website , it should be study and have fun lol

OpenStudy (anonymous):

lol :D ...i guess from our school canteen :)

OpenStudy (anonymous):

i know right ;)

OpenStudy (anonymous):

heheheheh true true bah no ut should be open study , have fun plus baqlawa distributing lol

OpenStudy (anonymous):

lol :D

OpenStudy (anonymous):

hhhhhhh .. i think you r dreaming of baglawa right now

OpenStudy (anonymous):

oh yessss we doooooo n we r eating baqlawa atm

OpenStudy (anonymous):

yummmmm :)

OpenStudy (anonymous):

do u want some ??

OpenStudy (anonymous):

no khadeeja u dun offer him he should send us

OpenStudy (anonymous):

yes ..u r right

OpenStudy (anonymous):

yeesss plz .. loool baglawa and they add like sugar or something lol

OpenStudy (anonymous):

i'll send u our baglawa and send me ur baglawa loooooooooll

OpenStudy (anonymous):

heheheheh our baqlawa is made out of diamond

OpenStudy (anonymous):

okk ...no problem ....

OpenStudy (anonymous):

maheeh ...dont lie too much :)

OpenStudy (anonymous):

wow diamond hahaha no i dont want a diamond i just want to eat looool

OpenStudy (anonymous):

lol khadeeja th n dun eat ma baqlawa

OpenStudy (anonymous):

khadeeja is saying the truth :) hehehehehehehehe

OpenStudy (anonymous):

thank u :)

OpenStudy (anonymous):

hehehe all i meant was az u guyz put nuts on top of baqlwas bah we put diamond

OpenStudy (anonymous):

lol :D wht on earth u talking about .....

OpenStudy (anonymous):

coz our throats are made ouyt of steal nothing happens hehehehehe

OpenStudy (anonymous):

lol :D ...OMG ...maheen

OpenStudy (anonymous):

omg so you dont eat like us loooool u eat like jazora if you know this cartoon looooooool

OpenStudy (anonymous):

yh ..and thts maheen ...not me ...im a human ;)

OpenStudy (anonymous):

ur zeros r increasing in lol .....hehe :p

OpenStudy (anonymous):

ur ma frnd khadeeja means ur included kha

OpenStudy (anonymous):

i should go study for my final or my i will make a baqlawa in my grades loooooool

OpenStudy (anonymous):

hehhehehe chief ha pryt goo n study or else u l only dream of zerosss

OpenStudy (anonymous):

ll*

OpenStudy (anonymous):

wish me luck .. and thank you guys for the fun lool :)

OpenStudy (anonymous):

g. luck ...no woriies it wa sreally nice talking to ya ;)

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