Auniversity surveyed recent graduates of the english department about their starting salaries. four hundred graduates returned the survey. the average salary was $25,000. assume for purposes of this problem that the population standard deviation is known, and it is $2,500. what is the 95% confidence interval for the mean salary of all graduates from the english department?

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]