Question

Which of the following is a rational number? A. 2.36965879...

B. -✓36
C. Pi
D. 13


PLEASEEE HELP MEEEE !!!!

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Answer 1

D

Explanation:

A number is rational if it can be written as a fraction composed of integers:

Option A is not a rational number because its digits have no end, so its irrational

Option B is not a rational number because ✓(-36) is not defined as a real number, so you cannot write it as a fraction composed of two integers

Option C is not a rational number because its digits have no end, so its irrational

Option D is rational because you can write it as a fraction composed of integers like 26/2 or 13/1 for example

Answer 2

13 is the only rational because a is endless, b is imaginary, and pi is also endless