Janie asked all of her classmates about the number of pets they have in their household. Her findings are shown in the table. A 6-column table with 4 rows. The first column has no label with entries boys, girls, total. The second column is labeled 0 pets with entries 8, 7, 15. The third column is labeled 1 pet with entries 4, 6, 10. The fourth column is labeled 2 pets with entries 3, 5, 8. The fifth column is labeled more than 2 pets with entries 0, 2, 2. The sixth column is labeled total with entries 15, 20, 35. Which statement about the two-way frequency table is true?

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.

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Which is f(5) for the function –2x2 + 2x - 3?