How can you use a scatter plot to describe the relationship between two data sets?

What is the solution to the division problem below x3+x2-11x+4/x+4

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.

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6