Question

Which number produces an irrational number when multiplied by 1/4

Answer 1

Hello there!

Your answer is none of the above.

The answer for a would be -9, which is rational

The answer or a would 1/3, which is rational

The answer for c would be 3, which is rationonal

The answer for D would be 1/9, which is rational


Hope I helped!

Let me know if you need anything else!

~ Zoe

Answer 2

First, we should identify what an irrational number is.
An irrational number is basically a number that has no end.
E.g. Pi or any repeating decimal

We should also remember that whenever another rational number is multiplied by another rational number it should always stay rational
1/4 x -36 = -9
1/4 x 4/3 = 1/3
1/4 x 12 = 3

But when multiplied by an irrational number it should stay irrational
1/4 x 0.444444... = 0.111111...
D. 0.444444... is your answer