How Many 6-Digit Numbers Can Be Formed Using the Digits

question 37

Multiple Choice

How many 6-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repetitions of digits are allowed?

• A) 1,000,000
• B) 46,656
• C) 999,999
• D) 720

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Definitions:

Hippocampus

A major part of the brain involved in learning and memory.

Medulla

A part of the brainstem that controls vital bodily functions such as heart rate, breathing, and blood pressure.

Biological Clock

An internal mechanism in organisms that regulates biological rhythms and cycles, such as sleep-wake cycles, often in response to environmental cues.

Hypothalamus

A region of the brain responsible for producing hormones that regulate essential bodily functions, including temperature, hunger, and sleep.