Question

Which numbers are rational numbers and irrational numbers and why

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-3.786, 3π, 8/17, 8.23, √11, 10.86731234, 0.75, √.49

Answer 1

rational: -3.786, 8/17, 8.23, 10.86731234, 0.75, √.49 = 0.7

irrational: 3π, √11

Explanation:

Any number that can only be represented completely using symbols, such as π or √, is an irrational number.

If the number can be expressed as the ratio of two integers, it is a rational number. Such numbers include proper and improper fractions, integers, any number you can write with a finite number of digits, and any repeating decimal, regardless of the length of the repeat.