Show set of data that is a function using at least 5 domain values and 5 range values. It can be shown in a format of your choice. I can do this problem, but I don't know what it's asking. I just need explanation.

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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