What goes in these 2 blanks number 10 if you know question 11 please answer also

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0