Prove Sin(3x)=(sinx)(4cos^2x-1)

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?

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"