If an object is projected upward with an initial velocity of 129 ft per sec, its height h after t seconds is h equals negative 16 t squared plus 129 t. Find the height of the object after 5 seconds.

If a =6, what is the value of 2a(3b + 5c)?

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?

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k