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alina1380 [7]
3 years ago
12

​ ​ A hotel has 18 floors. The hotel owner believes the number 13 is unlucky. The first 12 floors are numbered from 1 to 12. Flo

or 13 is numbered 14, and the remaining floors are numbered from 15 to 19. The hotel manager starts on the top floor of the apartment building. He rides the elevator two floors down. The doors open and a hotel guest gets in. They ride the elevator three floors down. The hotel guest gets off the elevator. The hotel manager rides the elevator the remaining floors down to the first floor. ​a.​Write an addition expression using negative integers to show the number of floors the hotel manager rode down in the elevator. ​ ​b. ​On what floor did the hotel guest get off the elevator? Explain. ​ ​
Mathematics
1 answer:
tresset_1 [31]3 years ago
3 0

The answer for A would be 18 + -17. I'm not sure about B, you may need another Brainly user's help.

Hope this helps in any way possible!

- Juju :)

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3 years ago
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Vera_Pavlovna [14]

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I guess, A is the wanted answer, but

A and D together are the really correct answer.

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if I understand this correctly, then

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the domain of a function is the definition of all valid x (input) values.

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well, the content (the arguments) of a square root cannot be negative (at least not while dealing with real numbers).

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I guess your teacher wants to focus only on the positive results of the square root, so A is the correct number.

BUT formally, without designated restrictions, a square root has always 2 solutions : a positive and a negative one.

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so, I would have to say that the really correct answer is

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