anonymous
  • anonymous
http://prntscr.com/9ckmwc
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
pretty sure it is b
anonymous
  • anonymous
any other opinions?
anonymous
  • anonymous
I would help but i cant get the page to open

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More answers

Nnesha
  • Nnesha
do you know how to complete the square ??
anonymous
  • anonymous
What are the center and radius of the circle defined by the equation ? x^2=y^2-6x+10y+25=0 A. Center (3, -5); radius 3 B. Center (-3, 5); radius 3 C. Center (-3, 5); radius 9 D. Center (3, -5); radius 9
anonymous
  • anonymous
no, pls explain
anonymous
  • anonymous
no medal?
Nnesha
  • Nnesha
first move the constant term to the right side and then x's and y's terms together \[\large\rm \color{Red}{(x^2-6x)}+\color{blue}{(y^2+10y)}=-25\] i just subtracted 25 both sides
anonymous
  • anonymous
im still not sure on the answer
Nnesha
  • Nnesha
now make the both parentheses trinomial by completing the square to complete the square you need to take half of x term and then square it in other words add (b/2)^2 to the opposite side
anonymous
  • anonymous
no clue
Nnesha
  • Nnesha
for example for first one \[\large\rm \color{Red}{(x^2-6x)}+\color{blue}{(y^2+10y)}=-25\] (x^2-6x) where b is -6 takle half\[(x+\frac{b}{2})^2\] of b which is -3 and then take square of it 3^2= 9 now add 9 to the opposite side \[\large\rm \color{Red}{(x^2-6x+9)}+\color{blue}{(y^2+10y)}=-25\color{Red}{+9}\] and now you can factor (x^2-6x+9) or in short form when we complete the square the factor of trinomal would always be \[\rm (x+\frac{b}{2})^2 \] do the same with y's values
anonymous
  • anonymous
im just dumb ):
Nnesha
  • Nnesha
you're not dumb you're not trying that's it
anonymous
  • anonymous
lol, but thanks for helping

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