В школьной
библиотеке 2 400 учебников что составляет
4
5 всех книг. Сколько всего книг в библиотеке?

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?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?