3. The following diagram shows where a road intersects two parallel streets. At
one intersection, ∠2 measures 120°. What are the measures of ∠7 and ∠8 at the
other intersection? How do you know?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

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?

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3