To determine which numbers are rational, we look for numbers that can be expressed as a fraction (where both the numerator and denominator are integers, and the denominator is not zero).
Let's evaluate each number:
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√14: This is an irrational number because it cannot be expressed as a fraction of two integers.
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2.7: This is a rational number because it can be expressed as 27/10.
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√36: This is a rational number because it equals 6, which can be expressed as 6/1.
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√72: This is an irrational number because it cannot be expressed as a simple fraction (approximately 8.485).
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11/23: This is a rational number because it is already expressed as a fraction of two integers.
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π: This is an irrational number because it cannot be expressed as a fraction of two integers.
From this evaluation, the numbers that are rational are:
- 2.7
- √36
- 11/23
So, the three that apply are 2.7, √36, and 11/23.