Which of the following is an irrational number? A 64−−√ B 90−−√ C 25−−√ D 169−−−√ please help

Rizwan Ali asked Dec 16, 2022

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34 votes

Which of the following is an irrational number?

A
64−−√

B
90−−√

C
25−−√

D
169−−−√
please help

Rizwan Ali asked Dec 16, 2022

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24 votes

Answer:

sqrt(90) is irrational

Explanation:

sqrt(64) = 8

sqrt(90) = 3 sqrt(10)

sqrt(25) =5

sqrt(169)=13

The only one that is not simplified to an integer is sqrt(90)

sqrt(90) is irrational

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