monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and mean lide span of 15,000 hours. If a monitor is selected at random, find the probability that the life span of the monitor will be more than 18,780 hours. Round your answer to four decimal places.

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)