What is the solution set for x2+12x=-11

Step-by-step explanation:

x^2 + 12x = -11

x^2 + 12x + 11 = 0

(x + 1)(x + 11) = 0

x + 1 = 0         x + 11 = 0

x = -1              x = -11

x = -1, x = -11

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

idk

step-by-step explanation: