2-7 Square Roots and Real Numbers A

Front

What is the square root of 81?

Back

The square root of 81 is 9.

Front

Back

Natural, integers, rational, whole.

Front

Find the square root of 62 and round to the nearest hundredth.

Back

The square root of 62 is approximately 7.87.

Front

Back

Natural, whole, integer, rational.

Front

What is the square root of 0.09?

Back

The square root of 0.09 is 0.3.

Front

What is the definition of a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers.

Front

What is the definition of an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.

Front

What is the difference between natural numbers and whole numbers?

Back

Natural numbers are positive integers (1, 2, 3, ...), while whole numbers include all natural numbers and zero (0, 1, 2, 3, ...).

Front

What is the square root of a negative number?

Back

The square root of a negative number is an imaginary number.

Front

Back