Which of the following is a rational number? (4 points)
2 answers:
Step-by-step explanation:
square root 15 = irrational
square root 16 = 4 = rational
square root 21 = irrational
square root 22 = irrational
Answer:
The correct answer is the square root of 16.
Step-by-step explanation:
The square root of 16 is 4, which is a whole number. Whole numbers are rational.
This eliminates the rest of the answers, but the square root of 15 has an infinite decimal, as well as the square root of 21 and 22.
Hope this helps! :)
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