Seudónimo Seudónimo

16-08-2017
Mathematics

contestada

which number is irrational?
A. square root of 5
B. 0.3
C. 0.454545...
D. 0.777...
is it C?

Respuesta :

kphung76127 kphung76127

16-08-2017

The answer is A.

The square root of 5 is a nonrepeating and nonterminating decimal which makes it irrational. B is a terminating decimal so it is rational. C and D are rational because the decimals repeat.

ps. 0.454545... is equivalent to 45/99

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