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Identify the number that does not belong with the other three. Explain your reasoning. 26.6 repeating 6, square root 48, negative 51 over 2, negative 55.1

User TC Arlen
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2 Answers

1 vote
The number that doesn't beling is
√(48).

This is true because all other numbers are rational (i.e., can be written as a fraction), while
√(48) is an irrational number (i.e., can not be written as a fraction).
User GuruMeditation
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4 votes

Answer:

The square root of 48 is the only irrational number in that group.

Explanation:

A. 26.6 ( repeating 6 ) =
26(2)/(3)

B.
√(48) = 4√3

C. -51/2 = -25.5 =
25(1)/(2)

D. -55.1

So, we have A, C and D as rational numbers.

Only
√(48) is an irrational number

Hence, The square root of 48 is the only irrational number in that group.

User Jon Deokule
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5.9k points