Social Networks Have Existed in One Form or Another for Over

question 34

Multiple Choice

Social networks have existed in one form or another for over _______ years.

• A)10
• B)15
• C)25
• D)40
• E)50 The precursors of today's social networks began in the 1970s as online bulletin boards that allowed users with common interests to interact with one another.The first modern social network was Six Degrees.com,launched in 1997.

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Definitions:

Marginal Utility Per Dollar

The additional satisfaction obtained from spending one more dollar on a good or service.

Marginal Utility

The supplementary value or enjoyment experienced from the consumption of an additional unit of a good or service.

Money Income

Income received in the form of currency or through electronic transfers, as opposed to goods or services.