Which of these numbers is not rational?
A. 3 squared
B. .25
C. 1/5
D. 9 squared
It's the square root of 3 and 9
They're not squared oops
or maybe they are
im kinda confuzzled ya know?
To determine which of these numbers is not rational, we need to understand what rational numbers are. Rational numbers are numbers that can be written as a fraction, where the numerator and denominator are both integers (whole numbers).
Let's go through each of the options and check if they are rational:
A. 3 squared = 3^2 = 9. This is a whole number, so it can be written as 9/1, which is a fraction. Therefore, 9 is a rational number.
B. 0.25 can be written as 25/100, which can be simplified to 1/4. It is a fraction, so 0.25 is a rational number.
C. 1/5 is a fraction, where 1 is the numerator and 5 is the denominator. Since the numerator and denominator are both integers, 1/5 is a rational number.
D. 9 squared = 9^2 = 81. Like option A, 81 is a whole number and can be written as 81/1, which is a fraction. Therefore, 81 is also a rational number.
After evaluating each option, we can conclude that all of these numbers are rational. None of them are irrational or non-rational numbers.
This site should unconfuzzle you.
https://www.mathsisfun.com/irrational-numbers.html