If angle 1 and 2 are complementary angles and angle 2 is 20° more than angle 1, what are the measures of each angle?

For each proportion find the unknown number x 1/5/8=×/15

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2