12. What is the measure of angle J in the triangle below? Drawing is not to scale. (1 point) K
15
12
1049
L
14°
31°
39°
51°

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.

What does the relationship between the mean and median reveal about the shape of the data

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52