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Q: What the radius for a circle with the equation x2 plus y2 equals 12?

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Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..

Radius = 1111

If that equals 16 then the radius is 4

7

9

8

Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.

That's the equation of a circle with its center at the origin and a radius of 8.

x^2+y^2=36

The ' 1 ' in that equation is the radius.

3 (which is the sqrt of 9)

Centre = (0,0), the origin; radius = 11

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