How to find integral of absolute value.

Find x to the nearest hundredth place

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.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)