Combine like terms. 8t - 9t + 4t - 12t

-9t

-7t

33t

17t

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?