The value that is not an irrational number is d) the square root of 80.
Both pi (π) and the cube root of 48 are irrational numbers because they cannot be expressed as a fraction or terminate or repeat as a decimal. Additionally, 9.83 repeating where the 3 is repeating is also an irrational number because it does not terminate or repeat.
However, the square root of 80 is not an irrational number. It can be simplified as the square root of 16 times the square root of 5, which equals 4 times the square root of 5. Since it can be expressed as a simplified fraction, it is not an irrational number.
Which of the following values is not an irrational number?
pi, the cube root of 48, 9.83 repeating where the 3 is repeating, and the square root of 80
a 9.83 repeating where the 3 is repeating
b π
c the cube root of 48
d the square root of 80
1 answer
3 answers