I need the answer please.
1 answer:
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<span> The formula is </span>
1. { } or ∅, the empty set, sometimes called the "null" set.
2. {1}
3. {2}
4. {3}
5. {1,2}
6. {1,3}
7. {2,3}
8. {1,2,3}.
Cross multiplication!
= 
7 × 24 = 8x
168 = 8x
Divide both sides by 8 to isolate x
= 
8 and 8 cancels out
21 = x
7 × 24 = 8x
168 = 8x
Divide both sides by 8 to isolate x
8 and 8 cancels out
21 = x