Which of the following is a solution to 2cos2x − cos x − 1 = 0? a. 0° b. 150° c. 180° d. 210°

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.