Perform the Indicated Operation $\left[ 5 \operatorname { cis } \frac { 4 \pi } { 9 } \right] ^ { 2 }$

question 4

Multiple Choice

Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal
places.
- $\left[ 5 \operatorname { cis } \frac { 4 \pi } { 9 } \right] ^ { 2 }$

• A) \(- 23.4923 + 8.5505 i\)
• B) \(8.5505 - 23.4923 \mathrm { i }\)
• C) \(- 4.6985 + 1.7101 \mathrm { i }\)
• D) \(4.3412 + 24.6202 \mathrm { i }\)

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Definitions:

Activity-Based Costing

An accounting method that assigns costs to products or services based on the activities they require, aiming for more precise allocation of indirect costs.

Machine-Hours

A unit of measure representing the cumulative number of hours a machine is operated within a specific time frame.

Activity Rate

A measure used to assign costs to cost objects, based on the activities that drive costs in an activity-based costing system.

Activity-Based Costing

A cost allocation method that spots activities inside an organization and apportions the costs of these activities to all products and services, according to how much they actually use.