A Street slopes downward at an angle of 15 degrees with the horizontal. A ball is rolling on the street. How far does the ball roll when it has covered a horizontal distance of 120 meters? With an explanation please

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i

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