Question

I’m in a hurry please help,can someone do theses 2 problems??

Answer 1

Irrational numbers never end and they never repeat. They can never be written as a fraction. An example of an irrational number is pi.

Rational numbers can be written as fractions; when written as decimals they either end or repeat in a pattern. An example of a rational number is 9.

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Let's start on the left box:

$\sqrt{16}$ = 4, so it is rational.

1/2 is a fraction, so it is rational.

.$\overline {5}$ is repeating, so it is rational.

-10 is a whole number, so it is rational.

5 is a whole number, so it is rational.

$\sqrt{18}$ = 4.24264... so it is NOT rational.

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Moving on to the right box:

$\sqrt{20}$ = 4.4721... so it is irrational.

3 1/4 is a fraction, so it is NOT irrational.

.12345... is never ending and unrepeating, so it is irrational.

25 is a whole number, so it is NOT irrational.

5.55555... is repeating, so it is NOT irrational.

$\sqrt{1}$ = 1, so it is NOT irrational.