Which are the solutions of x2 = 19x + 1? 19 - v19 19 + / 19 2 2 19 + v 365 19 - 365 19 + 7365 -19 - v19, -19 + / 19 -19 - 1865 -19 + 1365 36 9 - 2

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

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b