anonymous
  • anonymous
what is the radius? x^2+y^2-2x+6y+9=0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[\sqrt{9}=?\]
UsukiDoll
  • UsukiDoll
maybe it helps to rearrange this equation first and then have it in the equation of the circle format.
freckles
  • freckles
completing the square needs to be done for the x and y terms separately of course

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UsukiDoll
  • UsukiDoll
OH right forgot that @freckles
anonymous
  • anonymous
oh yes.
anonymous
  • anonymous
the answer is 1 thank you all though :)
UsukiDoll
  • UsukiDoll
how did you get 1?
anonymous
  • anonymous
graphing calculator perhaps
UsukiDoll
  • UsukiDoll
or desmos/wolfram alpha XDDDDDDDDDDDDD
anonymous
  • anonymous
\[(x^2-2x)+(y^2+6y)=-9\]
anonymous
  • anonymous
i didnt but i got answer wrong and the test said the correct anwer was 1 lol
anonymous
  • anonymous
thats why we never get mcq for test
UsukiDoll
  • UsukiDoll
<_< yeah that's why I asked... you need to understand the concepts of this so you can be able to solve these equations
UsukiDoll
  • UsukiDoll
mcq? @saseal
anonymous
  • anonymous
multiple choice questions
UsukiDoll
  • UsukiDoll
oh XD. Come to think of it, it's been years since I had one
anonymous
  • anonymous
@grecar98 take that equation i gave ya and complete the square
anonymous
  • anonymous
time for me to learn bitumen road making...afk!
IrishBoy123
  • IrishBoy123
as the OP has found the answer: \(x^2+y^2-2x+6y+9=0\) rearrange \(x^2 - 2x +y^2+6y+9=0\) complete squares \([(x-1)^2 -1] +[(y +3)^2 - 9] +9=0\)

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