Suppose $a(x) = 3x - 7$ and $b(x) = 2 - x^3$. Find $a(b(3)) - b(a(3))$.

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.

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?