Use matrix inversion to solve the given system of linear equations. (You previously solved this system using row reduction in Chapter 4.) x + 2y = −8 y − z = 0 x + 3y − 2z = −3

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

What are “like terms”? why can we only add like terms?