How
many
and what type of roots does the equation f(x) = 0 have?

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?

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.