Brainliest Opportunity for those who took APUSH!

1. Mr. Sin channel on yt teaches everything about H Geo it has really helped me

2. The college board also has videos for you to watch but you would have to need a teacher code

3. Also you should go to yt and do other researches for yourself

it would take 95 years for that supernova to be visible on earth, so the year would be about 2113. i hope i did my calculation right.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11