ABC-DEF What sequence of transformations will move ABC onto DEF?

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.

What is the frequency of the sinusoidal graph?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.