Предмет: Математика, автор: n4795678

зведіть подібні доданки 5х+4х
ПОМОГИТЕ ПОЖАЛУЙСТА ДАЮ 20 БАЛОВ

Ответы

Автор ответа: mashakolesnik2019
1

Відповідь:

5x+4x=9x

Покрокове пояснення:

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Предмет: Английский язык, автор: habarovadiana6808
Срочно.

1. The documents _____ by yesterday.

A have been signed C had been signed

B will sign D signed

2.What happened to the old mail carrier? He _____ to a new neighborhood to

work last week.

A has sent C was sent

B has been sent D sent

3. I don't want _____ out tonight. I'm too tired.

A going C to have gone

B to go D gone

4. The lesson _____ when I arrived.

A has already started C had already started

B started D had already been started

5. Many valuable paintings _____ by the fire last evening.

A are destroyed C were destroyed

B had been destroyed D have been destroyed

6. The new theatre _____ in my street now.

A is building C had been built

B has been built D is being built

7. Gold _____ in California in the 19 th century.

A was discovered C had discovered

B has been discovered D discovered

8. They _____ in a sport competition this week.

A had taken part C have been taking part

B have taken part D took part

9. How long _____ English so far?

A have you learnt C are you learning

B have you been learning D has it been learnt

10. He used to talk to us for hours about all the interesting things he _____ in his

life.

A had been doing C was done

B was done D had been done

11. 'Who does the washing-up in your house? The dishes _____ by my brother

and then they _____ by my sister.

A are washed, are dried C washed, dried

B were washed, were dried D wash, dry

12. Why can't I use your car? Because it _____ at the moment.

A is serviced C is servicing

B was serviced D is being serviced

13. The meeting _____ at 5 o'clock yesterday.

A began C had begun

B has begun D was beginning



14. So, when did they tell you about the robbery? I _____ by the police as soon as they found it out.

A informed C am informed

B have been informed D was informed

15. Why can't we go over the bridge? Because it _____ at the moment.

A is being repaired C is repairing

B was repaired D has been repaired

16. Who looks after your baby when youre at work? He _____ after by my mother.

A is looked C is being looked

B was looked D looks

17. What will happen to the criminals? They _____ for their crimes.

A will punish C were punished

B will be punished D will have punished

18. Have you ever appeared on TV? Actually, I _____ to take part in a show last

month.

A will be asked C was asked

B asked D have been asked

19. When will I have my car serviced? It _____ to your house the day after tomorrow.

A will deliver C will have been delivered

B will be delivered D will have delivered

20. Did you post the letters? No, they _____ by the time I came in.

A had been posted C have been posted

B were posted D had posted

21. The house _____ magnificent. It _____ by the owners.

A is looking, is renovated C is looking, was renovated

B looks, had been renovated D looks, has been renovated

22. A key invention _____ the steam engine. It _____ in the 18 th century.

A was, was developed C has been, has developed

B is, is developed D was, developed

23. This problem ___ at 3 o’clock yesterday.

A. was discussed C. was being discussed

B. discussed D. was discussing

24. This problem ___ in detail now.

A. is considered C. is being considered

B. has been considered D. is considering

25. _____ given delicious food at the party yesterday?

A. Were you C. Have you

B. Will you be D. Have you been
Предмет: Українська мова, автор: Flashsnows