This graph shows the water temperature as a function of time.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

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

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39