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yKpoI14uk [10]
3 years ago
7

I dont know what to do​

Mathematics
1 answer:
storchak [24]3 years ago
8 0

Answer:

7. Neither.

8. Neither.

9. Vertical angles.

10. Adjacent angles.

11. Neither.

12. Neither.

Vertical angles are angles which are vertically opposite and have the same angle.

Adjacent angles are angles which look like right angle shape but it's a little slanted.

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Since the sum of the probabilities of all possible outcomes must be 100%, we can deduce the following:

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In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.

That being said, all three answers are simply a combination of these three scenarios: let C be the cooking time, for aesthetic reasons:

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Our equation looks like:

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