3xsquared minus 2x minus2 - 0 solve for x

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?

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom