Which fraction represents the product of -5/6 x 5/6 in simplest form? A. -1 B. -5/6 C. -25/36 D. 25/36

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

Use the graph of the sine function y=2sinθ shown below

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?