The figure below shows a rectangle with a diagonal drawn.
Which equation shows the trigonometric relationship between complementary angles?
sin(t) = sin(u)
sin(s) = cos(u)
cosis) = sin(v)
cos(t) = cos(v)

What is the binomial expansion of (2x-3)^5

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

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