187 Answered Questions for the topic Circles

04/12/14

points help show work
Consider the points (4,-7) and (-6, 13). (a) Find the midpoint. Show work. (b) If the point you found in (a) is the center of a circle, and the other two points are points on the circle, find the... more
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Circles

04/04/14

How do you find the x intercepts and y intercepts of a circle with a given circle besides graphing?
The circle is not in the formula already. The equation is x^2+y^2+4x-6y+4=0 Also I am not sure whether I should complete the square or not.
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04/02/14

Optimization Problems
A piece of wire 200 cm is cut into two pieces: one a square and another a circle. Where should the cut be made if the sum of the two areas (square and circle) is to be a minimum.
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04/01/14

Optimization Problems
A piece of plexiglass is in the shape of a semicircle with radius 2 m. Determine the dimensions of the rectangle with the greatest area that can be cut from the piece of plexiglass. 
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Circles Standard Form

01/06/14

How to you put x^2+y^2=x+2 into the standard form of a circle without graphing?
I know the standard form of a circle is (x-h)^2+(y-k)^2=r^2 but I don't see how to put x^2+y^2=x+2 into that form.
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Circles

10/24/13

if the radius is 18 inches then what is the diameter
i need help with calculating circles and spheres
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Circles

04/25/13

finding the center of a circle given the equation
what is the center of the circle with the equation: x squared plus y squared minus 6x plus 2y minus 6 equals 0
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Circles Geometry

02/24/13

Cirlce P is tangent to each side of ABCD. AB= 20, BC=11, and DC= 14. Let AQ= x and find AD
helppppppppppppppppp :(
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Circles Geometry

02/24/13

AB and AC are tangents to circle O, and OC= 5X. find OC.
AB= 14+4X AC= 19-6x Making clear OC is just the radius its not the whole diameter. Help me please! I don't know what to do after I make equal the two tangents (I know they are congruent) so I... more
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Circles Area

01/09/13

I need help on finding the Circumference and Area of Circles.
I  need help on this, my math teacher is not a very good teacher when it comes to teaching. Please explain this to me. This > π < is the pi symbol. Thanks! Solve using:        C = 2πr = πd... more
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12/11/12

A real life application problem involving the conic : circle ?
Include an explanation (answer)
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12/11/12

A problem (real life application) and explanation (answer)
Using all four (4) conic sections: Cirlcle, Ellipse, Hyperbola, and Parabola.  
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