Question

What is the sum and classification of rmula1" title="\frac{2}{5} + \sqrt{88}" alt="\frac{2}{5} + \sqrt{88}" align="absmiddle" class="latex-formula">
A- 9.78083151..., irrational

B - 9.78083151..., rational

C-13.38083151..., irrational

D- 13.38083151..., rational

Answer 1

Answer:

The answer is def. A.

Answer 2

Answer: OPTION A.

Step-by-step explanation:

By definition:

A number is Rational when it can be written as a simple fraction.

A number is Irrational when it cannot be written as a simple fraction.

Notice that:

$\frac{2}{5}$ is a Rational number.

$\sqrt{88}=2\sqrt{2}$ It is an irrational number.

Therefore, the sum of these numbers is an Irrational number:

$\frac{2}{5} + \sqrt{88}=\frac{2}{5} + 2\sqrt{22}=9.78083151...$