Предмет: Алгебра, автор: Mrdomi23

Розв’яжіть рівняння:
а) 9х4-9х2+21=0;
б) (х+2)2=(3х+2)2

Ответы

Автор ответа: itsdimik10
1

Ответ:

Прикрепил выше.

Объяснение:

Прикрепил выше.

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Помогите пожалуйста с тестом по грамматике) Question 11

Баллов: 1

Can the Internet give me _________ news?

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the latest

the fastest

the last

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Question 12

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_________ strange that she didn’t speak to you?

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Баллов: 1

The office _____________ at nine o'clock.

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Баллов: 1

Alice thinks her firm is in trouble. She _____________ this month.

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Баллов: 1

When David came, everybody ________________ .

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was examining

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had been examined

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Баллов: 1

____________ hot in London in spring?

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Is it

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Does it

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Баллов: 1

This strike _____________ very quickly.

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has been forgetting

won’t be forgotten

forgets

won’t be forgetting

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_________ a real hurricane the other day! Did you hear it?

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It is;

There is;

There was.

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It becomes_____ as the winter is coming.

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more coldly

colder

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The living-room _____________ at the moment.

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will be packed

have been packed

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If you require _________ information or assistance, ask at your local station.

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further

furthest

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_________ place like home.

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There is no;

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It is;

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______________ here in summer.

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There isn’t raining

It doesn’t rain

There is raining

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Is Alan _____________ than Jim?

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as tall as.

taller;

tall;

Question 36

Баллов: 1

The research _______________ now by a team of European scientists.

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is doing

is being done

was done

has been doing

Question 37

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Volkswagen cars _____________ in Germany.

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were made;

is made.

Question 38

Баллов: 1

Find out, please, if presents _______________ by Christmas.

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