anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
shabeer y u blok me
anonymous
  • anonymous
You just keep on chatting
anonymous
  • anonymous
@abdul shabeer im sorry can u unblok me

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More answers

anonymous
  • anonymous
@abdul shabeer click my name unblock user
amistre64
  • amistre64
can someone google ....... that sounds like an odd request
anonymous
  • anonymous
do u know how
amistre64
  • amistre64
how to google? yes
anonymous
  • anonymous
how to answer the question
amistre64
  • amistre64
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
anonymous
  • anonymous
so can u solve it
amistre64
  • amistre64
i can solve it yes.
anonymous
  • anonymous
can u help me
amistre64
  • amistre64
i can, but i need to know where it is that you are getting lost in this.
anonymous
  • anonymous
what do i need to do to get the answer
amistre64
  • amistre64
you need to know the quadratic formula; that would be the simplest way to approach this
anonymous
  • anonymous
ax^2 + bx + c = 0
amistre64
  • amistre64
\[y = ax^2 + bx + c\] 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:\[x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\]
amistre64
  • amistre64
since we know all the values, we simply plg them into their right spots and calculate: \[x=\frac{-0.41\pm\sqrt{0.41^2-4(-0.005)(-5.1)}}{2(-0.005)}\]
amistre64
  • amistre64
one of these values will most likely be useless to the situation; so we need to exclude it in the results as extraneous
anonymous
  • anonymous
33.35 ft
amistre64
  • amistre64
lol, ill trust you on that :)
anonymous
  • anonymous
is it right
amistre64
  • amistre64
dunno, id use a calculator to come up with it if i had one
anonymous
  • anonymous
i dnt
anonymous
  • anonymous
so...
anonymous
  • anonymous
do u know what its round
amistre64
  • amistre64
http://www.wolframalpha.com/input/?i=y%3D-0.005x%5E2%2B0.41x-5.1
amistre64
  • amistre64
http://www.wolframalpha.com/input/?i=-0.005x%5E2%2B0.41x-5.1%3D0 66.71 would be my assumption
anonymous
  • anonymous
thanks that all u had to say in the beg.
amistre64
  • amistre64
no, it wasnt. http://openstudy.com/code-of-conduct "Don’t post only answers - guide the asker to a solution."
anonymous
  • anonymous
idc
amistre64
  • amistre64
you should, otherwise all your doing is abusing this site to get free answers ...
anonymous
  • anonymous
ok and.....
anonymous
  • anonymous
if i was...
amistre64
  • amistre64
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 :)
anonymous
  • anonymous
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....
anonymous
  • anonymous
im not harassing
amistre64
  • amistre64
and im not suspending ....
anonymous
  • anonymous
not suspending what..................................

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