Find the area of sector AOB, in terms of π rounded to the nearest thousandth if necessary, and to the nearest hundredth of a square centimeter.

The area of sector AOB is

π ≈

cm2.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Find the slope of a line given the following two points

Which of the following is the shape of a cross section of the figure shown below