Use the system of inequalities x ≥ –2, x + y ≤ 7, and y ≥ 2x + 1. Find the maximum and minimum values of the function f(x, y) = 3x – y for the feasible region.

For the function, f(x) = -5x 2, find f(-4).

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking: