Question

Identify the number that does not belong with the other three. Explain your reasoning. 50.1 repeating 1, negative 50 over 2, negative 50.1, square root 50

Answer 1

hint:
\[50.\bar 1 = \frac{{501 - 50}}{9} = \frac{{451}}{9}\]

Answer 2

\[\frac{{ - 50}}{2} = - \frac{{25}}{1}\]

Answer 3

\[ - 50.1 = - \frac{{501}}{{10}}\]

Answer 4

what do you mean? @Michele_Laino

Answer 5

\[\sqrt {50} = 5\sqrt 2 \]

Answer 6

and:
\[\sqrt 2 \] can not be express as a ratio between two integer numbers

Answer 7

so is it
square root 50

Answer 8

yes! It is an irrational number

Answer 9

thank you sooo much!!

Answer 10

thank you!! :)