Line ABC is a straight line. Line A B is a straight line. Line B comes out of the line to form angles 1 and 2. Which describes the relationship between Angle 1 and Angle 2?

Use circumcenter theorem to solve for the given values

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?