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HELP WILL GIVE BRAINIEST AND 60 POINTS AND 5 STARS!!!! ITS DUE IN 10-15 MINUTES!!! Which of these 4 numbers are rational numbers and which one of them is the only one that is irrational? and explain why you got ur answer using math terminology or math logic

HELP WILL GIVE BRAINIEST AND 60 POINTS AND 5 STARS ITS DUE IN 1015 MINUTES Which of these 4 numbers are rational numbers and which one of them is the only one t class=

Respuesta :

Answer:

[tex]\sqrt{21}[/tex] does not belong

Step-by-step explanation:

a rational number is defined by any number that ends or repeats.

[tex]\sqrt{36\\}[/tex] ends because it is just 6

[tex]\frac{2}{3}[/tex] repeats so it is rational

[tex]\frac{1}{5}[/tex] ends becuase it is just 0.2

but [tex]\sqrt{21}[/tex] does not end nor repeat, making it irrational

4512027888

Answer:

21 is the irrational one

Step-by-step explanation:

you cant multiply to of the same whole numbers by itself and get 21