1. Is this sequence arithmetic? If yes, write a recursive formula to represent it. 3, -2, -7,-12

Does the point (1, sqrt 7) lie on circle shown.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28