Find the Center and Radius of the Sphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } + 18 x + 16 y - 10 z + 89 = 0$

question 103

Multiple Choice

Find the center and radius of the sphere. $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } + 18 x + 16 y - 10 z + 89 = 0$

• A)center: (9,8,-5);radius: 9.
• B)center: (-9,-8,5);radius: 9 .
• C)Center: (-9,8,-5);radius: 9
• D)center : (9,8,-5);radius: 81
• E)center: (9,8, -5);radius: 81

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