kayalcece4 kayalcece4

15-05-2015
Mathematics

Answered

is 2.78778777... a irational number

Answer :

15-05-2015

YES!!! 2.78778777 is an irrational number because it has endless numbers, and a irrational number cant be put as a fraction but rational numbers can be put as a fractio!!

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benlovespi benlovespi

15-05-2015

If by the ellipses you mean to say that the number 7 repeats forever after that point, then it is not irrational. Any number which can be expressed with repeating decimals is not irrational. For example, pi is an irrational number because it has no repeating decimals, but 0.33333333... is not irrational because it can be expressed by simply saying 0.3 repeated.

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