Ce numere impartite la 6 dau catul cuprins intre 3 si 8?

Solve the system of equations. y= 2x y= x^2 - 15

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).