-2√7 rational or irrational?

Mathematics

2 answers:

IgorLugansk [536]3 years ago

3 0

The sqrt(7) part makes it irrational, so the answer is irrational.

Pani-rosa [81]3 years ago

3 0

Answer

$-2\sqrt 7$ $\text {is an irrational number}$

Explanation

$-2\sqrt 7$ is an irrational number, an irrational number is a number that contains repeating decimals or that cannot be written as a simple fraction.

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igor_vitrenko [27]

Given:

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The lateral surface area of the cube can be determined using the formula,

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Substituting a = 1.8 in the above formula, we get;

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nexus9112 [7]

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