A study estimated that the correlation coefficient for the cost of a tablet and the amount of memory available in the tablet is r = 0.85. According to this correlation coefficient, how is the cost of a tablet expected to change as the amount of memory decreases?

It will decrease.
It will increase.
It will stay the same.

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