The Quadratic Mean (Or Root Mean Square) Is Usually Used $$\text { quadratic mean } = \sqrt { \frac { \sum x ^ { 2 } } { n } }$$

question 77

Multiple Choice

The quadratic mean (or root mean square) is usually used in physical applications. In power distribution systems, for example, voltages and currents are usually referred to in terms of their root mean square value. The quadratic mean of a set of values is obtained by squaring each value, adding the results, dividing by the number of values (n) , and then taking the square root of that
Result, expressed as
$$\text { quadratic mean } = \sqrt { \frac { \sum x ^ { 2 } } { n } }$$ Find the root mean square of these power supplies (in volts) : 56, 53, 22, 20.

• A) 20.7 volts
• B) 37.8 volts
• C) 41.3 volts
• D) 75.5 volts

Understand basic concepts of object-oriented programming.

Know the software development life cycle (SDLC) stages and their significance.

Identify different types of software licenses and their legal implications.

Understand and apply the principles of intercompany transactions elimination in consolidated financial statements.

---

Definitions:

Startup Option

Settings that determine the behavior of a software application upon its launch, which can include opening a specific file, displaying a welcome screen, or other actions.

Navigation Pane

A section of the interface in software that allows users to move between different areas or documents within an application.

Linked Table

A table in a database that maintains a live link to data in another database, allowing for synchronized updates.

Linked Table Manager

A feature in database systems that manages connections to tables from different sources, ensuring data is synchronized.