Find the Center and Radius of the Sphere $x ^ { 2 } - 2 x + y ^ { 2 } + 4 y + z ^ { 2 } + 6 z = 211$

question 53

Essay

Find the center and radius of the sphere. $x ^ { 2 } - 2 x + y ^ { 2 } + 4 y + z ^ { 2 } + 6 z = 211$

---

Definitions:

Sexual Stimulation

Activities or actions that arouse sexual desire or increase sexual arousal.

Nongenital Body Parts

Areas of the body other than the sexual organs that can experience sexual arousal or stimulation.

Dominatrix

A woman who takes the dominant role in BDSM activities, often involving the control and discipline of a submissive partner.

Chains

Objects composed of interconnected links, often made of metal, used for securing or fastening.