$$\text { Find an equation of the sphere that passes through the point } ( 7 , - 2,9 ) \text { and has center } ( - 2,3 , - 3 ) \text {. }$$

question 18

Short Answer

$$\text { Find an equation of the sphere that passes through the point } ( 7 , - 2,9 ) \text { and has center } ( - 2,3 , - 3 ) \text {. }$$

---

Definitions:

Variable Cost

A cost that changes in proportion to the level of activity or volume of output in a business.

Wages

Payments made to workers for their labor, usually calculated on an hourly, daily, or piecework basis.

Salaries

Salaries refer to the regular payments made by employers to employees, typically on a monthly or bi-weekly basis, in exchange for their labor or services.

Shutting Down

A short-term decision by a firm to cease production due to market conditions, typically when revenue does not cover variable costs.