Use the Permutations Formula
-How Many 3-Letter Codes Can Be $A , B , C , D$

question 139

Multiple Choice

Use the Permutations Formula
-How many 3-letter codes can be formed using the letters $A , B , C , D$ , and E? No letter can be used more than once.

• A) 60
• B) 20
• C) 10
• D) 40

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A way of gaining knowledge by means of direct observation or experiment, which is based on empirical evidence.

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A form of love characterized by deep affection, mutual respect, and a strong emotional bond, often found in long-term relationships.

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