Предмет: Алгебра, автор: jghfgdnvnc

помогите пожалуйста((((

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Автор ответа: Death54

Объяснение:

Пусть сторона квадрата х. Одна сторона 2*x, другая сторона5*х: Площадь прямоугольника (2*x*5*х).

x=2, тогда площадь 10*4=40

x=10, тогда площадь 10*100=1000

x=4, тогда площадь 10*16=160

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C1. Plural form of nouns

Прочитайте предложение. Выберите вариант А, В или С, грамматически соответствующий данному предложению.

1. I have many ... in the box.
А. toy B. toyes C. toys
2. All the ... had wonderful hats.
А. ladies B. ladys C. lady
3. Peter likes ... very much.
А. potato B. potatos C. potatoes
4. In autumn the ... cover the ground.
А. leaf B. leaves C. leafes
5. ... deliver newspapers to our houses.
А. Postman B. Postmans C. Postmen
6. I saw many ... in the village.
А. sheep B. sheeps C. sheepes
7. There are many books on the ... .
А. shelves B. shelfes C. shelfs
8. The ... were arrested and put into prison.
А. thief B. thiefs C. thieves
9. There are many ... in the Russian forests.
А. deer B. deers C. deeres
10. I know that ... are very strong animals.
А. ox B. oxes C. oxen

C2. Present Simple / Past Simple

Прочитайте предложение. Выберите вариант А, В, С или D, грамматически соответствующий данному предложению.

1. Harry never ... to work by bus.
A. go B. do goes C. does D. goes
2. She ... chocolate.
A. likes not B. not like C. don t like D. doesn t like
3. We always ... to bed early.
A. goes B. doesn t go C. go D. does
4. Mary ... a lot last year.
A. travelled B. travels C. travelling D. did travel
5. Mum ... any gifts yesterday.
A. brought not B. didn t bring C. doesn t bring D. didn t brought
6. Where ... this kitten?
A. did you find B. you did find C. found you D. did you found
7. What flat ... in?
A. did she lived B. does she live C. did she lives D. does she lived
8. Ann ... at home last Sunday, she went to a party.
A. didn t stayed B. didn t stays C. didn t stay D. did stay not
9. How is Mary? ... her on Monday?
A. was you see B. did you see C. does you see D. are you see
10. My friend and I ... to read English books.
A. like B. likes C. doesn t like D. didn t liked

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1. They ... for us near the door.
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2. Tom ... television every day.
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3. What ... in the room now?
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9. No, she ... in this house.
A. isn t live B. don t live C. doesn t live D. lives not
10. What ... of this film?
A. is you thinking B. do you think C. are you think D. you think

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