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August 2, 2015

Homework Help: math

Posted by karen on Saturday, August 11, 2012 at 5:03pm.

please help!

1.) A random digit from 1 to 9 (inclusive) is chosen, with all digits being equally likely. The probability that when it's squared it will end with the digit 1.

2.) A random number between 1 and 20 (inclusive) is chosen. The probability that its square root will not be an integer.

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