Предмет: Математика, автор: Аноним

Помогите пожалуйста!!! Срочно!!
Даю 41 бал!!

Приложения:

Ответы

Автор ответа: iramazurk
0
Ответ:

Пошаговое объяснение:
1)
|х| = 6
х1 = 6
х2 = -6

2)
|х| = -2
Нет корней, так как модуль числа всегда положительный или равен нулю.
х € ∅

3)
|-х| = 6,7
|х| = 6,7
х1 = 6,7
х2 = -6,7
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(to see, this film?) — (never / twice) — Have you ever seen this film? — No, I’ve never seen this
film. / — Yes, I’ve seen this film twice.
1. (to try, to speak, Chinese?) — (never) ....................................................................
2. (to drive, a car?) — (several times) ........................................................................
3. (to break, one’s arm?) — (once) ............................................................................
4. (to get, letters, from abroad?) — (never) ................................................................
5. (to learn, poems, by heart?) — (many times) .........................................................
(to be, France?) — (never / several times) — Have you ever been to France? — No, I’ve never
been to France. / — Yes, I’ve been to France several times.
1. (to be, the Historic Museum?) — (once) .................................................................
2. (to be, Australia?) — (never) .................................................................................
3. (to be, the Zoo?) — (three times) ...........................................................................
4. (to be, a birthday party?) — (many times) ..............................................................
5. (to be, the Bolshoy Theatre?) — (never) ................................................................
Вставьте since или for.
1. He has phoned me twice ....................................................................my birthday.
2. Sue has been my best friend ............................................................... a long time.
3. The child has had a sore throat ............................................................. a few days.
4. She’s been at home .......................................................... 6 o’clock in the evening.
5. She’s been on a business trip ................................................................... a month.
Исправьте ошибки.
7. Has Mary written the letter so far? ...........................................................................
8. I’ve been very tired today. ......................................................................................
9. I had a hard day today. ...........................................................................................
10. How many times have you see this film?