The daily changes in the barometric pressure for four days are −0.05, 0.09, −0.04, and −0.08 inches. a. what is the mean change? write your answer as a decimal. the mean change is (blank) inch. question 2 b. the mean change after five days is −0.01 inch. what is the change on the fifth day? write your answer as a decimal. the change on the fifth day is (blank) inch.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.