Question

In which of the following, the variable 'x' is irrational
A.x² = 9
B.x² =0.04
C.x² = 1/4
D.x² =5

Answer 1

A. 3² = 9

B. (0.2)² = 0.04

C. (1.5)² = 1/4

D. (2.2360679774997)² = 5

Hope it's helpful

Thanks

Answer 2

Answer:

D (5)

I REALLY HOPE THIS HELPS YOU

Step-by-step explanation:

A. x^2 = 9

    x = $\sqrt{9$

(Square root of 9 is 3 so it is rational)

B. x^2 = 0.04

   x = $\sqrt{0.04}$

( Square root of 0.04 is 0.2 so it is rational)

C. x^2 = 1/4

    x = $\sqrt{\frac{1}{4} }$

(square root of  $\frac{1}{4}$ is 0.25 so it is rational)

D. x^2 = 5

   x = $\sqrt{5\\}$

( Square root of 5 is 2.2360679775  So, the square root can't be found naturally so it is irrational )