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Find the Center and Radius of the Sphere x2+y2+z216x+6y+6z+18=0x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 16 x + 6 y + 6 z + 18 = 0

Question 20

Multiple Choice

Find the center and radius of the sphere.
x2+y2+z216x+6y+6z+18=0x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 16 x + 6 y + 6 z + 18 = 0


A) center: (8,3,3) ( - 8,3,3 ) ; radius: 8
B) center: (8,3,3) ( 8 , - 3 , - 3 ) ; radius: 8
C) center: (8,3,3) ( 8,3,3 ) ; radius: 8
D) center: (8,3,3) ( - 8,3,3 ) ; radius: 64
E) center: (8,3,3) ( 8 , - 3 , - 3 ) ; radius: 64

Correct Answer:

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