Calculate the discriminant and use it to determine how many real-number roots the equation has.

3x^2 - 6x + 1 = 0

three real-number roots

two real-number roots

one real-number root

no real-number roots

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.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct