Austin is watching a football game. his team loses 9 yards and then gains 5 yards. he doesn’t watch the next play, but afterwards he sees that his team now has a total loss of 1 yard. how many yards did the team gain or lose on the play austin missed? show your work.

Solve 2x+y=3 x+y=5 in substitution method

Standard deviation of 19,29,21,22,23

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.