Choose the correct simplification of the expression −3x2(5x − 4x2 − 6). a.−7x4 + 2x3 − 9x2 b.12x4 − 15x3 + 18x2 c.12x4 + 15x3 + 18x2 d.−12x4 + 15x3 − 18x2

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

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.

Solving systems of linear equations: tables represent two linear functions in a systemöwhat is the solution to this system? 0 (10)0 (1.6)0 18,26)0 18-22)