Let a Be the Set of All Strings of Decimal

question 147

Short Answer

let A be the set of all strings of decimal digits of length five. For example, 00312 and 19483
are strings in A.
-How many strings in A have exactly three 5s?

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Definitions:

Dynamic

Characterized by constant change, activity, or progress within a system or environment.

Competitive Advantage

A state or condition that elevates a corporation to a more favorable or dominant position over its adversaries.

Organization Earn

The income generated by a business or entity from its operational and non-operational activities.

Legal-political Conditions

The framework of legal regulations and political factors that shape the operational environment of businesses and organizations.