How Many 3-Digit Codes Using the Digits 0 Through 9

question 61

Multiple Choice

How many 3-digit codes using the digits 0 through 9 are possible if repetitions are allowed?

• A) 729
• B) 504
• C) 1000
• D) 30

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Definitions:

Biological Rhythms

Natural processes that cyclically change over a period of time in living organisms, such as the circadian rhythm or menstrual cycle.

Onset of Sleep

The transition period from wakefulness to sleep, marking the beginning of the sleep cycle.

Hypersecretion

Abnormally increased output of a secreted material. Compare with hyposecretion.

Growth Hormone

A biochemical substance that promotes growth, cellular reproduction, and the renewal of cells in humans and animals.