Find the Center and Radius of the Sphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x + 4 - 8 y = 0$

question 77

Multiple Choice

Find the center and radius of the sphere. $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x + 4 - 8 y = 0$

• A) \(C ( 2,2,4 ) ; r = \sqrt { 2 }\)
• B) \(C ( 0,2,4 ) ; r= 4\)
• C) \(C ( 2,4,0 ) ; r = \sqrt { 2 }\)
• D) \(C ( 2,4,0 ) ; r= 2\)
• E)none of these

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Definitions:

Time-Driven Activity-Based Costing

A costing method that assigns costs to products or services based on the estimated time required to perform activities and the rate at which those activities consume resources.

Order Fulfillment Department

A division within a company responsible for managing orders from receipt to delivery, ensuring products reach customers efficiently.

Capacity Analysis

The process of determining the production capacity needed by an organization to meet changing demands for its products.

Time-Driven Activity-Based Costing

A costing method that assigns resource costs directly to products or services based on precise measurements of how much time is needed for specific activities.