In the diagram, about 68% of the scores fall within the shaded area, which is symmetric about the mean, i. The
distribution is normal and the scores in the shaded area
range from 60 to 92. What is the standard deviation of the
scores in this distribution?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

∆red ≅ ∆ by rule will give brainiest if possible

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part 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 (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)