Solve 0 = 4x2+12x+9.select the equation that shows the correct substitution of a, b, and c in the quadratic formula.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?