Asked by Anonymous

To which subset(s) does the number –square root of twenty belong? Choose all that apply.

(Irrational Numbers
(Rational Numbers***
(Integers***
(Whole Numbers
(Natural Numbers

The maximum of choices is 2

Answered by Anonymous
THINK

square root of 2 (about 1.414213562) can NOT be expressed as a ratio of two whole numbers

square root of ten can NOT be expressed as ratio of two whole numbers

THEREFORE

square root of two * square root of ten which is square root of twenty can NOT be expressed as the ratio of two whole numbers

THEREFORE
square root of twenty is IRRATIONAL

Answered by Damon
2 sqrt 5 = sqrt 20
sqrt 5 = 2.236067977
IRRATIONAL
Answered by Damon
http://www.dictionary.com/browse/irrational--number
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