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11. If x² =9, then x = - 3. 12. If today is Wednesday, then yesterday was Friday. I need help with this 2 questions please

11. If x² =9, then x = - 3. 12. If today is Wednesday, then yesterday was Friday. I need help with this 2 questions please
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1 vote
11. If x² =9, then x = - 3.

12. If today is Wednesday, then yesterday was Friday.

I need help with this 2 questions please

asked
User Matos
by
8.1k points

1 Answer

3 votes

Answer:

11. Yes, but it can also be 3

12. No, if today is Wednesday, yesterday was TUESDAY.

answered
User Otto G
by
8.7k points
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