Find the number that makes the ratio equivalent to 10:1.
:8

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?

Which angle of rotation is an angle of rotational symmetry for all figures?

Awoman won a 4000-m race with a time of 12.089 min. what was her rate?