Предмет: Математика, автор: yayayana

Упростите выражение пожалуйста:)
-7(6х+3)-5(4-х)

Ответы

Автор ответа: MrsRasta
0
-7(6х+3)-5(4-х) = -42x - 21 - 20 + 5x = -37x - 41
Автор ответа: marykate98
0
-7(6х+3)-5(4-х)=-42x-21-20+5x=-37x-41
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1. Read the text and say which sentences are true or false:

A story about a parrot


Once there lived a man who had a parrot. The man tried to teach the parrot to speak. But

the parrot could learn only the phrase, “There is no doubt about it.” (в этом нет

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“There is no doubt about it”.

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dollars?” The parrot answered, “There is no doubt about it”.

“What a clever parrot”, she said and bought the bird.

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Then the parrot cried, “There is no doubt about it”.

This time the parrot was right.

1. The parrot learned a lot of words.

2. The man liked his clever bird so much that he decided not to sell it.

3. The woman thought that the parrot was very clever.

4. The parrot said the same words.

5. The woman sold the parrot.

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1. I don’t like snakes and I don’t like mice….. .

2. I can cook fairly well and my friend can ….. cook very well.

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eight hundred____ years old. 3. Last Sunday there were two thousand___ people in the

square. 4. Thousand___ of tourists come to Scotland every year. 5. More than ten million___

people live in Moscow.

4. Put the verbs in Present Simple, Past Simple or Future Simple.

1. Our teacher (to ask)______________________ us a lot of questions every lesson.

2. You (not to bring) __________________________ new books last week.

3. My brother (to fly)_________________________ to Berlin next autumn.

4. _____ you (speak)____________________ English well?

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5. Complete the sentences with the necessary words.*

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