Prove that ;
sin a - cos a + 1/ sin a + cos a - 1​

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

What is fraction that is equivalent to 3/8

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.