The average age of teachers in a particular school is 42 years old, with a standard deviation of 5 years. If 40 teachers are chosen at random for a committee, find the probability that the mean age of those teachers is more than 41.2 years.
Assume that the variable is normally distributed
What are the corresponding z value(s) and what is the probability?

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.

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)

Select all the statements that apply to this figure