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Определите знаки выражений sin169, tg132, cos(-78), ctg247 Почему?
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Предмет:
Математика -
Автор:
sadielxdw - 4 года назад
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Ответы 1
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Горизонтальная касательная (сверху) - линия котангенсов. Вертикальная касательная (справа) - линия тангенсов.
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Автор:
brucetwml - 4 года назад
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Пожалуйста помогите, срочно
Unit test 7A Elementary FOURTH EDITION
1. Complete the sentences with the Past Simple form of
the verbs in brackets.
1. 1 Where did you go (go) to university?
2 Einstein __________ (publish) his theory of relativity
about 100 years ago.
3 Yuri Gagarin _____ (be) the first man in space.
4 ABBA __________ (not have) many number 1 hits in
the USA.
5 _____ people _____ (listen) to CDs 20 years ago?
6 I __________ (not bring) an umbrella.
7 How much pocket money _____ you _____ (get) when
you were a child?
8 We __________ (not have) dishwashers when we were
young!
9 _____ you _____ (enjoy) your holiday last month?
10 Our parents never _____ (talk) on mobile phones
when they were children.
2. Write the questions.
1 Who did you go with?
I went with my friends.
2 _____________________________________
The film started at 9.30 p.m.
3 _____________________________________
We went to the airport by bus.
4 _____________________________________
I bought two shirts.
5 _____________________________________
He paid £35.
6 _____________________________________
No, she didn’t like it.
7 _____________________________________
I didn’t come because I didn’t feel well.
3. Read and tick (✓) the true sentences. Correct the wrong
sentences.
Swim Girl, Swim!
On 23 August 1926, Gertrude Ederle, a famous American
swimmer, became the first woman to swim the English
Channel.
In 1924, Ederle won a gold medal in the Olympic Games when
she was only 17 years old. She swam across the English Channel
two years later.
She started in France at 7.05 on the morning of 6 August. The
swim took 14 hours and 30 minutes. The weather was bad, with
wind and rain. The first person to meet her on the English coast
was an officer who asked for her passport!
When she got home, she became the star in a movie called
Swim Girl, Swim and she also met the President of the United
States.
Unfortunately, in 1933, she fell down the steps of her apartment
building, and because of the accident, she couldn’t swim in
competitions again. She never married and died on 30
November 2003 at the age of 98.
1 Gertrude Ederle was a famous swimmer from England.
Gertrude Ederle wasn’t from England. She was from the USA.
2 Ederle wasn’t 20 years old when she swam across the
English Channel.
___________________________________________
3 She started the swim across the Channel in England.
___________________________________________
4 She left in the evening of 6 August 1926.
___________________________________________
5 The weather wasn’t good when she swam across the
Channel.
___________________________________________
6 The officer in England gave Ederle a flag.
___________________________________________
7 She married a movie star.
___________________________________________
8 After 1933 she couldn’t swim in the Olympics again.
___________________________________________
4. Choose the correct word to complete the conversations.
A (1) Did you invite / invited Maria and Jens to the party?
B No, but I (2) asked / did asked Tomas and Maria.
A I (3) waked / woke up at 7 a.m.
B But you didn’t (4) eat / ate breakfast until 9 o’clock!
A Did you (5) meet / met Professor Ramirez at the
airport?
B No, Walter (6) does / did.
A How long did the flight (7) take / took?
B It (8) did take / took about 90 minutes.
A Did you (9) waved / wave when you saw them leave on
the plane?
B Yes, I waved but they (10) didn’t see / saw me.
A (11) Did / Do they sell many fireworks last year?
B Yes, they (12) selled / sold a lot.-
Предмет:
Русский язык -
Автор:
gemma - 4 года назад
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Ответов:
1 -
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Write about shapes. (Напиши о фигурах.) Colour them. 1. There are sixteen green balls in this square. 2. ________________________________
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Выполни деление с остатком. 7 : 6 30 : 8 41 : 7 46 : 9 39 : 10 7 : 8 40 : 7 65 : 9 46 : 8 48 : 10
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Предмет:
Математика -
Автор:
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Керри, Вики и Барт приняли участие в конкурсе на лучшее стихотворение о своих питомцах. Помогите детям подобрать подходящие
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