Write the augmented matrix for each system of equations.
-2x - 2y + 5z=1
-sx- 5y + 7z=4
9x - 2y + 2z=-1

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample

What is the approximate value of the correlation coefficient for the given graph? a. 1 b. 5 c. 3 d. -1

Kyle cut a 4 foot piece of construction paper to be 6.1 inches wide by 8.2 inches long. what is the area of the piece of construction paper in square inches