The expressions that represent rational numbers are; √64 + 6/11, √16 + √169 and 17.43 + √49.
What are the rational expressions?
A rational number is simply any integer, terminating decimal/repeating decimal or fraction.
1) √6 + √9 = √6 + 3 → Not rational
2) √64 + 6/11 = 94/11 → Rational number
3) √36 + √21 = 6 + √21 → Not rational
4) √16 + √169 = 17 → Rational number
5) 17.4343434343434343 + √49 = 24.43434343 → Rational number
6) √44 + √25 = 2√11 + 5 → Not rational
Therefore, the expressions that represent rational numbers are; √64 + 6/11, √16 + √169 and 17.43 + √49.
Learn more about rational numbers here: https://brainly.com/question/17450097
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