Answered

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true or false18. In the circle: x^2+(y-2)^2=12, the radius is 12

Sagot :

The general equation of a circle is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

where (h,k) is the center and r is the radius of the circle.

Comparing the given equation of a circle and the above general equation we get:

[tex]r^2=12[/tex]

Then, the radius of this circle is:

[tex]r=\sqrt[]{12}[/tex]

In conclusion, the sentence is false.

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