Solve the system of equation -5y + 4x=49 7y + 2x = -23

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

What is the area of the triangle 10 13 12

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.