Question 4 (1 point) Use Raul's method to determine if the solutions to the equation are complex or real.
2x2 + 5x +4= 0
Both are imaginary
Both are real?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000