Math II (2Q): Practice Flashcard No. 4 - Irrational and Square Root

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction. It has a non-repeating, non-terminating decimal expansion.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers.

Front

TRUE or FALSE: The sum of two irrational numbers will always result in a rational number.

Back

False

Front

What type of number is a repeating decimal?

Back

Rational Number

Front

Which of the following radicals is rational? √27, √30, √49, √300

Back

√49

Front

Which of the following expressions is a terminating decimal? 1/2, 2/3, 2/11, Pi

Back

1/2

Front

What is a square root?

Back

A square root of a number is a value that, when multiplied by itself, gives the original number.

Front

What is the square root of 49?

Back

7

Front

What is the square root of 16?

Back

4

Front

What is the square root of 25?

Back

5