Respuesta :

Answer:

D. Irrational.

Step-by-step explanation:

Now  π is irrational.

Multiplying π by 3 gives another irrational number.  Also if you add a rational to an irrational number the result is irrational.

3π + 1 is an irrational number. Hence, option D is correct.

What is an irrational number?

An irrational number is a number that is not rational that means it is a number that cannot be written in the form [tex]\frac{p}{q}[/tex] .

π is an irrational number since, π = 3.142.... is a non repeating, non terminating number.

We know that 3 and 1 are whole numbers, thus rational. Adding and multiplying a rational number to an irrational number, always gives out an irrational product. Thus 3π + 1 is irrational.

Learn more about irrational number here

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