230 is equal to . 0 1 23

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

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

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.