Question
which is irrational
a. √49
b. √23
c. 23.85
d. 1/2
a. √49
b. √23
c. 23.85
d. 1/2
Answers
GPT-4o mini
To determine which of the options is irrational, let's analyze each one:
a. \( \sqrt{49} = 7 \) (a rational number)
b. \( \sqrt{23} \) (an irrational number, as 23 is not a perfect square)
c. \( 23.85 \) (a rational number, as it can be expressed as \( \frac{2385}{100} \))
d. \( \frac{1}{2} \) (a rational number)
The only irrational option from the list is **b. \( \sqrt{23} \)**.
a. \( \sqrt{49} = 7 \) (a rational number)
b. \( \sqrt{23} \) (an irrational number, as 23 is not a perfect square)
c. \( 23.85 \) (a rational number, as it can be expressed as \( \frac{2385}{100} \))
d. \( \frac{1}{2} \) (a rational number)
The only irrational option from the list is **b. \( \sqrt{23} \)**.