The size of a computer class is limited to 15 people. If 3 seats are still available, to what percent of its capacity is the full classical

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?

If value of cos330° is √3/2 then find tan165°.

Which expression is equivalent to 64 - 9x^2?