Determine the equation of a circle whose center is at (4, 5) andtangent to the circle whose equation is x? +y?+4x+6y-23 =0.XXI.XXII. What is the equation of a circle whose diameter's endpoints are(-3, 2) and (12, -16)?XXIII. Find the equation of a circle with center on x + y = 4 and 5x + 2y +1 = 0 and having a radius of 3.

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Answered: XXI. Determine the equation of a circle…

XXI. Determine the equation of a circle whose center is at (4, 5) and tangent to the circle whose equation is x? +y? + 4x+6y– 23=0.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter10: Analytic Geometry

Section10.1: The Rectangular Coordinate System

Problem 51E

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Question

Determine the equation of a circle whose center is at (4, 5) and
tangent to the circle whose equation is x? +y?+4x+6y-23 =0.
XXI.
XXII. What is the equation of a circle whose diameter's endpoints are
(-3, 2) and (12, -16)?
XXIII. Find the equation of a circle with center on x + y = 4 and 5x + 2y +
1 = 0 and having a radius of 3.

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