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What equation Describes the circle With the radius 9?

Anonymous

∙ 13y ago

Updated: 8/20/2019

(x2 + any number) + (y2 + any number) = 81

Wiki User

∙ 13y ago

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Related Questions

Which equation describes the circle with radius 9 that is centered at the origin?

x2 + y2 = 81

What is the radius for a circle with the equation x2 plus y2 equals 9?

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

What is the equation of the circle with center 2 9 and radius 7?

depends on the equation.

Find the radius for a circle with the equation x2 plus y2 equals 9?

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

What is the equation of the circle with center (2 -9) and radius 7?

Equation of circle: (x-2)^2 +(y+9)^2 = 49

The equation of the inner circle is x2 plus y2 equals 9 The radius of the outer circle is three times the radius of the inner circle What is the equation of the outer circle?

The radius of the inner circle is sqrt(9) = 3. The radius of the outer circle is therefore 3*3 = 9. The equation for the outer circle is then x^2 + y^2 = 9^2 = 81. (This is an application of Pythagoras' theorem a^2 + b^2 = c^2 in a right-angled triangle by the way)

The equation of the inner circle is x2 plus y2 equals 9 The radius of the outer circle is twice the radius of the inner circle What is the equation of the outer circle?

x^2+y^2=36

What is the equation for a circle with a center of (0 0) and a radius of 9?

The equation of the circle is: x^2 + y^2 = 81

When you make the circle bigger or smaller which number of the standard equation for a circle centered at the origin changes?

Standard equation for a circle centred at the origin is x2 + y2 = r2 where r is the radius of the circle. If you increase the size of the circle then the radius must increase, so r2 will be larger. eg a circle of radius 2 has the equation x2 + y2 = 4, if the radius increases to 3 then the equation becomes x2 + y2 = 9

What is the equation of the circle with the center at the origin and a radius of 9?

x² + y² = 81.

Radius for a circle with the equation x2 plus y2 equals 25?

9

What is the equation for a circle with a center of 0 and a radius of 9?

x2 + y2 = 81

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