Question

can someone google this answer and get the yahoo answer
Landon is standing in a hole that is 5.1 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = -0.005x2 + 0.41x - 5.1, where x is the horizontal distance of the rock, in feet, from Landon and y is the height, in feet, of the rock above the ground. How far horizontally from Landon will the rock land?

Answer 1

shabeer y u blok me

Answer 2

You just keep on chatting

Answer 3

@abdul shabeer im sorry can u unblok me

Answer 4

@abdul shabeer click my name unblock user

Answer 5

can someone google ....... that sounds like an odd request

Answer 6

do u know how

Answer 7

how to google? yes

Answer 8

how to answer the question

Answer 9

yeah, since the rock follows the path given then you just need to determine what teh x intercepts are and weed out any spurious results

Answer 10

so can u solve it

Answer 11

i can solve it yes.

Answer 12

can u help me

Answer 13

i can, but i need to know where it is that you are getting lost in this.

Answer 14

what do i need to do to get the answer

Answer 15

you need to know the quadratic formula; that would be the simplest way to approach this

Answer 16

ax^2 + bx + c = 0

Answer 17

\[y = ax^2 + bx + c\]

y = -0.005x2 + 0.41x - 5.1\[\begin{matrix}a=-0.005&b=0.41&c=-5.1\end{matrix}\]

the quadrtic formula is set up so that:\[x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\]

Answer 18

since we know all the values, we simply plg them into their right spots and calculate:
\[x=\frac{-0.41\pm\sqrt{0.41^2-4(-0.005)(-5.1)}}{2(-0.005)}\]

Answer 19

one of these values will most likely be useless to the situation; so we need to exclude it in the results as extraneous

Answer 20

33.35 ft

Answer 21

lol, ill trust you on that :)

Answer 22

is it right

Answer 23

dunno, id use a calculator to come up with it if i had one

Answer 24

i dnt

Answer 25

so...

Answer 26

do u know what its round

Answer 27

http://www.wolframalpha.com/input/?i=y%3D-0.005x%5E2%2B0.41x-5.1

Answer 28

http://www.wolframalpha.com/input/?i=-0.005x%5E2%2B0.41x-5.1%3D0

66.71 would be my assumption

Answer 29

thanks that all u had to say in the beg.

Answer 30

no, it wasnt.

http://openstudy.com/code-of-conduct

"Don’t post only answers - guide the asker to a solution."

Answer 31

idc

Answer 32

you should, otherwise all your doing is abusing this site to get free answers ...

Answer 33

ok and.....

Answer 34

if i was...

Answer 35

that should be reason enough in and of itself. but as long as you are not harassing people to get an answer; then its all good :)

Answer 36

dunno, id use a calculator to come up with it if i had one
u knew it just like just so happen u assumed right! right....

Answer 37

im not harassing

Answer 38

and im not suspending ....

Answer 39

not suspending what..................................