Step-by-step explanation:
Notice that B = {1, 3, 5, 7} and C = {0, 2, 4, 6, 8, 10}.
A U B = {1, 3, 5, 7}.
B ∩ C = { }.
A U C = {0, 1, 2, 4, 5, 6, 7, 8, 10}.
Answer:
yes
a) 0.00563
b) 1
c) 0
Total = 40+30+20 =90
a) (20C8×30C6×40C6)/90C20
= 0.00563
b) 1 - (no chocolate + 1 chocolate)
1 - [(50C20) + (40C1×50C19)]/90C20
1 - 0.00002478
= 0.9999752187
c) [40C20+20C20+30C20]/90C20
= 0.0000000027045
30 = w + 369
or
w + 369 = 30
The answer would be option A. h = –7, h = 21
Question: -2 |h-7|=-28
Substitution: -2 |-14 (-7-7)| = -28
-2*14=-28
Substitution 2:
-2 |14 (21-7)|=-28
