Answer :

Ashraf82

[tex]\sqrt{8}[/tex] is an irrational number ⇒ answer B

Step-by-step explanation:

Let us explain the meaning of:

  • A rational number is a number that can be written as a fraction
  • An irrational number is a number that cannot be expressed as a fraction

Examples:

Rational numbers : 10 , [tex]\frac{2}{5}[/tex] , 0.333

Irrational numbers : π , √8 , ∛25 , (2 + √5) , [tex]\frac{\sqrt{7}}{3}[/tex]

∵ [tex]\sqrt{9}=3[/tex]

∵ 3 is a rational number

∴ [tex]\sqrt{9}[/tex] is a rational number

∵ [tex]\sqrt{8}[/tex]

∵ There is no square root of 8

∴ [tex]\sqrt{8}[/tex] is an irrational number

∵ 0.3333 can be expressed as [tex]\frac{3333}{10000}[/tex]

∴ 0.3333 is a rational number

∵ [tex]\frac{2}{3}[/tex] is a fraction

∵ All fractions are rational numbers

∴ [tex]\frac{2}{3}[/tex] is a rational number

[tex]\sqrt{8}[/tex] is an irrational number

Learn more:

You can learn more about real numbers in brainly.com/question/4853862

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