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x2 + y2 = 81

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โˆ™ 2010-01-12 20:10:03
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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


What is the equation for a circle with a center of 0 0 and a radius of 8?

x2 + y2 = 64


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

x^2 + y^2 = 81


What is the equation for a circle with a center of 0 2 and a radius of 11?

x2+(y - 2)= 121


What is the equation of a circle whose center is at the origin and whose radius is 16?

(x-0)² + (y-0)² = r²


What is the equation of a circle with its center at the origin and radius 7?

(x - 0)2 + (y - 0)2 = 49


What is this equation for a circle with a center of (02) and a radius of 11?

The equation is: (x -0)^2 +(y -2)^2 = 121


What is the equation for a circle with a center of (3 0) and a radius of 12?

(x-3)2+y2=144


If a circle is centered at the origin and the length of its radius is 6 What is the circle's equation?

The general equation of a circle is given by the formula(x - h)2 + (x - k)2 = r2, where (h, k) is the center of the circle, and r its radius.Since the center of the circle is (0, 0), the equation reduces tox2 + y2 = r2So that the equation of our circle is x2 + y2 = 36.


Find the center and radius of the circle with this equation x2 plus y2 plus x equals 0?

x2+y2+4x+2y+3=0(x+2)2 + (Y+2.5)2 = 3This is the equation of circle with center at (-2,-2.5) with radius 3.5


What is the radius of the circle with the equation xยฒ plus yยฒ equals 36?

A circle centre (0, 0) and radius r has equation x² + y² = r² The circle x² + y² = 36 has: r² = 36 → radius = 6


What equation represents the graph of a circle?

Equation of a circle when its centre is at (0, 0): x^2 + y^2 = radius^2 Equation of a circle when its centre is at (a, b): (x-a)^2 + (y-b)^2 = radius^2


What is the equation for a circle with a center of 3 0 and a radius of 12?

center (3,0) radius 12 So the equation is (x-3)^2 + y^2 = 144 → y^2 + x^2 - 6x - 135 = 0 in general a circle of radius r centered at (h, k) has the equation: (x - h)^2 + (y - k)^2 = r^2


What is the length of the circle radius if the circle is x2 plus y2 equals 1?

The center of the circle is at (0, 0) and its radius is the square root of 1 which is 1


Find the center and radius of the circle with this equation X2 plus Y2 minus 6X plus 2Y equals 0?

The centre is (3,-1) and the radius is sqrt(10).


What is the equation of a circle centered at the origin with a radius of 5cm?

x2 + y2 = 25 A circle with centre (xo, yo) and radius r has equation: (x - xo)2 + (y - yo)2 = r2 So with centre the origin (0, 0) and radius 5 cm, the circle has equation: (x - 0)2 + (y - 0)2 = 52 ⇒ x2 + y2 = 25


Find an equation of the circle that has center 0 2 and passes through the origin.?

The equation of a circle with center (0,2) and radius r is x^2+(y-2)^2=r^2 Since it passes through (0,0) (the origin) 0^2+(0-2)^2=r^2 r^2=4 The equation of the circle is x^2+(y-2)^2=4


How do you find the center and radius of x2 Y2 16?

You need to think of that equation in terms of the classic definition of a circle: (x - a)2 + (y - b)2 = r2 where a and b are the center of the circle, x and y are any point on it's circumference, and r is it's radius. In the case of the circle you're looking at: x2 + y2 = 16 You can re-express it like this: (x - 0)2 + (y - 0)2 = 42 So that circle has a center at the point (0, 0), and a radius of 4.


What is the equation for a circle with a center of -4 0 and a radius of 10?

The general formula: (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius. So the required equation of the circle is: (x - -4)^2 + (y - 0)^2 = 10^2 (x + 4)^2 + y ^2 = 100


What is the distance chords are from the center of a circle?

Any value from 0 to the magnitude of the radius.


What is the center and the radius of the circle x2 plus y2 -4x -6y -3 equals 0?

Equation of circle: x^2 +y^2 -4x -6y -3 = 0 Completing the squares: (x-2)^2 +(y-3)^2 = 16 square units Therefore center of circle is at (2, 3) and its radius is 4 units


What is the equation of the circle that touches the x axis when its center is at 2 5?

Center of circle: (2, 5) Point of contact with the x axis: (2, 0) Distance from (2, 5) to (2, 0) equals 5 which is the radius of the circle Equation of the circle: (x-2)^2 +(y-5)^2 = 25


What is the center and radius of the circle x2 plus y2 -10x plus 6y -15 equals 0?

Equation of circle: x^2 +y^2 -10x +6y -15 = 0 Completing the squares: (x-5)^2 +(y+3)^2 = 49 square units Therefore center of circle is at (5, -3) and its radius is 7 units


What is the equation for a circle with a center of 4 0 and a radius of 10?

(x - 4)2 + (y - 0)2 = 102 or x2 - 8x + 16 + y2 = 100 or x2 - 8x + y2 - 84 = 0


What is the tangent line equation of the circle x2 plus y2 -8x -16y -209 equals 0 when it touches the circle at 21 8 on the Cartesian plane?

Equation of circle: x^2 +y^2 -8x -16y -209 = 0 Completing the squares: (x-4)^2 +(y-8)^2 = 289 Radius of circle: 17 Center of circle: (4, 8) Point of contact: (21, 8) Slope of radius: 0 Slope of tangent line: 0 Equation of tangent line: x = 21 which means it touches the circle at (21, 0) which is a straight vertical line parallel to the y axis