Give two examples that show how using parentheses can change the order in which operations are performed in an expression.

1foot = 12 inches; 1 yard = 3 feet

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Identify the number 127 as a rational or irrational. explain