Answer:
Step-by-step explanation
larger angle = 76+2x
smaller angle = x
supplementary angles add up to 180
∴(76+2x)+x=180
76+3x=180
3x= 180-76
3x = 104
x = 104/3
x = 34.7°(smaller angle)≈ 35
larger angle = 76+2(34.7)
=76+69.4
=145.4≈ 145
False, B actually belongs to U. B has all its numbers in set U but U doesn't have all its numbers in set B.
Change 5% to a decimal which is 0.05
Then multiply 0.05 by 220 which is 11.