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Mathematics 10 Online
OpenStudy (anonymous):

CORRECT ME IF I AM WRONG http://prntscr.com/2325tu

OpenStudy (anonymous):

Negative sqrt49: You take the square root first, THEN apply the negative, leaving you with -7. A rational (exact) number. 56.93 with a bar over the 93 means the 93 repeats forever, leaving you with an irrational number sqrt21 is an irrational number, as there is no real number solution for it 18.36 is rational. The number is exact.

OpenStudy (anonymous):

wow , thanks

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