Find the Center and Radius of the Sphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } + 6 x - 12 y - 6 z + 29 = 0$

question 13

Multiple Choice

Find the center and radius of the sphere. $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } + 6 x - 12 y - 6 z + 29 = 0$

• A)center: (3,-6,-3);radius: 25.
• B)center: (-3,6,3);radius: 5
• C)center: (3,-6,-3);radius: 25
• D)center: (-3,-6,-3);radius: 5
• E)center: (3,-6,-3);radius: 5

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