Actually answer or I will report please. Tara was hiking up a mountain. She started her hike at an elevation of 1200 meters and ascended at a constant rate. After 4 hours, she reached an elevation of 1700 meters. Let y represent Tara's elevation (in meters) after x hours. What is the equation of the line that models the relationship between the elevation and number of hours.

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2