The mean lifetime of a tire is 42 months with a standard deviation of 5 months. If 117 tires are sampled, what is the probability that the mean of the sample would differ from the population mean by less than 0.72 months? Round your answer to four decimal places.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

What is the point slope form of a line with slope -5 that contains point (2,-1)

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90