anonymous
  • anonymous
Write the equation of a circle with a center at (-2, -5) and a radius of 6.5. THE answer is (x + 2)2 + (y + 5)2 = 42.25?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
(x + 2)^2 + (y + 5)^2 = 42.25?
apoorvk
  • apoorvk
a circle with a centre (h,K) and radius "r" has an equation: (x-h)^2 + (y-k)^2 = r^2 you are right!
anonymous
  • anonymous
Write the equation of a circle with a center at (-3, -8) and a radius of 1/3 the answer is (x + 3)^2 + (y + 8)^2 = 1/3 ?

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apoorvk
  • apoorvk
no the constant on RHS will be 1/9... coz you square 1/3.. rest is right
anonymous
  • anonymous
I have one last question that can you check ?
anonymous
  • anonymous
What is the point of symmetry for the following circle? http://i729.photobucket.com/albums/ww292/akatushi101/mamita.gif
apoorvk
  • apoorvk
i think point of symmetry means the centre which should be (-3,-1).
anonymous
  • anonymous
Thanks for all the help :)

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