Question 672101
Rational numbers are decimals that end or repeat (.5 or .3333)
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1.
-{{{sqrt(16)}}} = -4... rational if visualized as {{{-4/1}}}
2.
{{{sqrt(27) = sqrt(9*3) = 3sqrt(3) = 5.19615}}}... irrational
3.
-{{{sqrt(2) = -1.4142135}}}... irrational
4.
{{{sqrt(57) =  7.54983}}}...irrational
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