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02-05-2018
Mathematics

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Write the equation in standard form for the circle with radius 3 centered at the origin

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02-05-2018

[tex]\text{The equation in standard forn of the circle with radius r and a center}\\\text{in A(a; b) is}\ (x-a)^2+(y-b)^2=r^2\\\\\text{We have: r=3 and A(0; 0)}\\\\\text{substitute:}\\\\(x-0)^2+(y-0)^2=3^2\to\boxed{x^2+y^2=9}[/tex]

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