Question

Are these numbers rational or irrational?

Answer 1

-89 is a rational number

127.89 is a rational number

$\sqrt{101}$  is an irrational number

0.328 is a rational number

Step-by-step explanation:

Rational numbers are the numbers can be written in the form of $\frac{a}{b}$ , where b ≠ 0

• Integers are rational number
• Fractions are rational numbers
• Decimals are rational numbers

Irrational numbers are the numbers can NOT be written in the form of  $\frac{a}{b}$

• The square root of not square numbers are irrational numbers
• The cube root of not cube numbers are irrational numbers
• π is an irrational number

∵ -89 is an integer

- Integers are rational numbers

∴ It is a rational number

-89 is a rational number

∵ 127.89 is a decimal number

- Decimal numbers are rational numbers

∴ It is a rational number

127.89 is a rational number

∵ 101 is not a square number

- It can not be formed in the form  $\frac{a}{b}$

∴ $\sqrt{101}$ is not a rational number

$\sqrt{101}$  is an irrational number

∵ 0.328 is a decimal number

- Decimal numbers are rational numbers

∴ It is a rational number

0.328 is a rational number

Learn more:

You can learn more about the rational numbers brainly.com/question/10894205

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