Determine which relation is a function.{(-4, 3), (-2,3), (-1, 2), (2,5), (3, 2)}{(-4,1), (-2, 3), (-2, 1), (-1, 5), (3, 2)}{(-4,1), (-2, 3), (-1, 2), (3,5), (3, 2)}{(-4, 1), (-2, 3), (-1, 1), (-1, 5), (3, 2)}

Question 5 spring semester final exam math evaluate

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias