Which of the following inequalities is correct?

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Which inequality has a dashed boundary line when graphed ?