Square roots and real numbers

Front

What is the square root of 81?

Back

9

Front

Is √81 a subset of irrational numbers?

Back

No, it is not a subset of irrational numbers.

Front

Classify the number -23.

Back

Real, rational, integer.

Front

Which subset does -√24 not belong to?

Back

Rational number.

Front

What is the area of a square garden if each side is 17 feet?

Back

289 square feet.

Front

Classify the square root of 24 as rational or irrational.

Back

Irrational.

Front

What is the definition of a real number?

Back

A real number includes all rational and irrational numbers.

Front

What is a rational number?

Back

A number that can be expressed as a fraction of two integers.

Front

What is an irrational number?

Back

A number that cannot be expressed as a simple fraction.

Front

What is the square root of a negative number?

Back

It is not a real number; it is an imaginary number.