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Entity-Relationship Diagrams Are Documents That Show the Primary and Secondary

question 33

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Entity-relationship diagrams are documents that show the primary and secondary keys associated with a conceptual data model.


Definitions:

Market Value

The present cost at which a service or asset is available for purchase or sale.

Book Value

The net value of a company's assets as recorded on the balance sheet, calculated by subtracting liabilities from the total value of assets.

Weighted Average

A calculation that takes into account the varying degrees of importance of the numbers in a data set.

Component Cost

The expense associated with acquiring or manufacturing each individual part of a product or service.

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