Предмет: Алгебра, автор: arsenajarp825qc

Решите уравнение
х2 - 7|x| + 12=0
В ответе укажите сумму его корней
-7
2
7
0

arsenajarp825qc: ок

arsenajarp825qc: спс

Ответы

Автор ответа: vityamath

0

Объяснение:

Решение на фотографии

Приложения:

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Предмет: Английский язык, автор: temira

Вариант - 6

1. What is the national emblem of England?
A) rosе
B) maple leaf
C) shamrock
D) tulip
E) violet

2. Choose the correct answer: If the chairman ... ill, the meeting wouldn't have been cancelled.
A) wouldn't have been
B) won't be
C) wouldn't be
D) wasn't
E) hadn't been

3. December 22 is … day of the year.
A) Short
B) shorter
C) the shortest
D) more shorter
E) the most shortest

4. Choose the right variant: Translate some … from English, please.
A) walk
B) sentences
C) lights
D) tables
E) windows

5. She spoke in a very low voice, but I ______ understand what she said.
A) might
B) can
C) must
D) could
E) couldn’t

6. London stands on the river … .
A) Blade
B) Thames
C) Severn
D) Colorado
E) Mersey

7. Choose the right form of the verb:
They _______ yet.
A) hasn’t arrived
B) won’t arrive
C) haven’t arrived
D) isn’t arrive
E) didn’t arrive

8. Choose the correct variant.
I live at number 22.’
A) He said he lived at number 22.
B) He said he live at number 22.
C) He said I lived at number 22.
D) He said he lives at number 22.
E) He says he lived at number 22.

9. Choose the correct answer: I looked out and saw that … .
A) It rained
B) It is raining
C) It rains
D) It was raining
E) It will rain

10. Choose the right variant:
Many books _____ in Kazakhstan every year.
A) are publishing
B) will published
C) are published
D) was published
E) publish

11. Choose the best alternative :
Please … careful when you cross this road.
A) Be
B) Is
C) has
D) are
E) Do

12. Complete the sentence: People ________ drive more carefully.
A) could
B) are
C) must
D) was
E) may

13. Choose the right variant. What is the population of Kazakhstan?
A) 100,000,000
B) 3,000,000
C) 16,000,000
D) 50,000,000
E) 20,000,000

14. Choose the right variant: People in Kazakhstan celebrate … on March 22.
A) Republic Day
B) Nauryz
C) Longest day of the years
D) Independence Day
E) Constitution Day

15. Are . . . pencils long or short ?
A) that
B) some
C) this
D) any
E) these

16. Choose the right variant: Darren … his key. He can`t get into the house.
A) has lost
B) loses
C) was lost
D) had been lost
E) lost

17. Find the right variant: To my mind, the government ________ take care of old people.
A) have
B) needn’t to

C) are to
D) ought to
E) may to

18. Water _____ at 100 degrees.
A) boils
B) is boiling
C) will boil
D) will have been boiling
E) have boiled

19. Find the right variant: The palace … to public in 1990.
A) open
B) is opened
C) opened
D) was opened
E) has been opened

20. Choose the right variant:
I`ll tell Anna all the news when … her.
A) I saw
B) I`ll see
C) I shall see
D) I see
E) I`m going to see

21. If he … more experienced, he … better.
A) will be, would do
B) were, would do
C) were, did
D) will, would do
E) is, would to

22. If my grandfather had had a chance to study, he…. a great man.
A) is
B) was
C) would have been
D) will be
E) would be

23.
Choose the right variant: You ____ take the journal. I don’t need it.
A) had to
B) can’t
C) may
D) couldn’t

E) shouldn’t

24. Choose the right variant: The flowers … in a warm sunny place.
A) should be kept
B) shall be keeping
C) be kept
D) should kept
E) shall keep

25. They’ll be back early … September.
A) In
B) On
C) By
D) At
E) For

26. The Queen of England lives … .
A) at 10 Downing Street
B) in Buckingham Palace
C) in Whitehall
D) in Westminster Abbey
E) in the Tower of London

27. … of music do you like?
A) Why
B) Were
C) What
D) What kind
E) When

28. I took my English exam the day … yesterday.
A) In
B) From
C) At
D) Before
E) After

29. Find the synonymous way of expression for the following:
Betty’s brother doesn’t like to spend his free time at home.
A) Betty’s brother is a very indoor person.
B) Betty’s brother is always angry.
C) Betty’s brother is a very outdoor person.
D) Betty’s brother is a very interesting person.
E) Betty’s brother is a very talented person.

30. Choose the right variant:
They bought many books. They’re ... books.
A) my
B) her
C) there
D) his
E) their

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