Question

What is the sum and classification of
`(2)/(5) + √(88)`

A- 9.78083151..., irrational

B - 9.78083151..., rational

C-13.38083151..., irrational

D- 13.38083151..., rational

Answer 1

The answer is def. A.

Answer 2

Answer: OPTION A.

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:

`(2)/(5)` is a Rational number.

`√(88)=2√(2)` It is an irrational number.

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

`(2)/(5) + √(88)=(2)/(5) + 2√(22)=9.78083151...`