Both circle a and circle b have a central angle measuring 50°. the area of circle a's sector is 36π cm2, and the area of circle b's sector is 64π cm2. which is the ratio of the radius of circle a to the radius of circle b?

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?