Add: 4x 2y + 5xy 2 − 7xy and 5xy 2 − 5xy − 4x 2y

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4