Answer:
D) 0.515151
Detailed explanation:
Hi there! Our task is to find the rational number.
What are rational numbers?
- Rationals are numbers that can be expressed as fractions, in p/q form.
Pi is the most widely known irrational number so that's not it.
0.1177225438821 is most likely irrational too.
The square root of 10 is a surd, or a never-ending square root.
0.515151, however, is a rational number.
Therefore, the right choice is D.