which of these numbers is not rational?

A.√3
B.0.25
c.1/5*
d.√9

*= My answer

I mean A!

yes. A.

Can someone please check my answer???

One and one half

4 batches
start root 3 end root
one-half
4 to the 8th power
one-third
81
–7 • –7 • –7 • –7 • –7

To determine which of these numbers is not rational, we need to understand what rational numbers are. Rational numbers are numbers that can be expressed as the ratio of two integers (a fraction).

Let's go through each option to determine if it is rational or not:

A. √3: This is not a rational number because √3 is an irrational number. Irrational numbers cannot be expressed as a fraction of two integers. Therefore, A is not rational.

B. 0.25: This is a rational number because it can be expressed as the fraction 1/4. The numerator and denominator are both integers, so B is rational.

C. 1/5: This is a rational number since it can be expressed as the fraction 1/5. Again, because the numerator and denominator are both integers, C is rational.

D. √9: This is a rational number. The square root of 9 is equal to 3, which can be expressed as the fraction 3/1. Therefore, D is rational.

Based on the above analysis, the number that is not rational is option C, 1/5.

So it's B.

No. C is wrong.

Study this site.

http://www.mathsisfun.com/rational-numbers.html