What are the roots of the equation x² + 6x + 13 = 0 in simplest a + bi form? please someone help me bro im so bad at trig

Answer question above and explain each step : )

Select the two pairs of figures that are similar.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2