Question

TrueO FalseQuestion 6 (3 points)THIS QUESTION HAS TWO PARTS AND TWO NUMBERSUse a calculator to compute the following square roots. Round to the nearest thousandth when necessary.Then, state whether the number is rational or irrational.121.2. -V81BI U 3 E sº sa22

Answer 1

To answer this question, we need to define what a rational and irrational number means

A rational number is a number that can be expressed as a ratio of two integers where both the numerator and the denominator in the fraction are integers.

To check if the options are rational or irrational numbers

Step 1: Find the square root of the numbers

$\sqrt[]{12}\text{ =}2\sqrt[]{3}$

since 2√3 cannot be expressed as a ratio of two integers, then It is not a rational number

$-\sqrt[]{81}=-9$

since -9 can be expressed as a fraction:

$-9=-\frac{9}{1}$

It is a rational number