The expression which is irrational is √10. Also, 8/5 is rational. √4 is rational. √64 is rational.
What are rational numbers and irrational numbers?
Rational numbers are numbers that can be written in the form of [tex]\dfrac{a}{b}[/tex] where a and b are integers.
Example: 1/2, 3.5 (which is writable as 7/5), etc.
Irrational numbers are those real numbers that are not rational numbers.
Know that all natural numbers are integers, and all integers are rational numbers. That means natural numbers are not irrational.
8/5 is rational. It is expressed in the form of [tex]\dfrac{a}{b}[/tex] .
√4 = 2 = 2/1 . This is rational because it is expressed as the ratio of two integers.
√64 = 8. This is rational because it is expressed as the ratio of two integers.
√10 = 3.16227..... The decimal part does not end and it is irrational because it can not be expressed in the form of [tex]\dfrac{a}{b}[/tex] .
Therefore √10 is irrational.
Learn more about rational number here;
https://brainly.com/question/14261303
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