Is the relation a function? select yes or no for each relation 1. (3, 3), (3, -2), (-2, 4), and (1, -6) 2. (3, 3), (5, -2), (-2, 4), and (1, -2) 3. (3, 3), (5, -2), (-2, 4), and (5, 9) 4. (3, 3), (5, -2), (-2, 4), and (4, 9) need fast.

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf