A sector of a circle has an arc length of 8 pi inches and a central angle of 20 degrees, as shown. What is the circumference of the circle? Express the answer in terms of Pi. A circle. The shaded section has an angle measure of 20 degrees and an arc length of 8 pi inches. Recall the formula StartFraction Arc length over Circumference EndFraction = StartFraction n degrees over 360 degrees EndFraction. 98 pi inches 124 pi inches 144 pi inches 288 pi inches

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