Jeffery thinks that the largest place value 8.21 and 19.5 have in common is the tens place. austin thinks that the largest place value they have in common is the ones place. a.) who is correct, jeffrey or austin? b.) write how you would explain your answer to the person who answered incorrectly.

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.

Measure of angles 31 (x+4) (3x+9) me

Find cot x if sin x cot x csc x = √2