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воздушный змей имеет квадратную форму половина воздушного змея выкрашена красной площадь закрашенной части 2451 сантиметров Какой длины планка понадобится чтобы приклеить его периметру змея
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Предмет:
Математика -
Автор:
sparklemurillo - 6 лет назад
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Ответы 1
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2450x2=4900 кв см площадь всего змея
корень квадратный с 4900= 70 см - сторона квадрата
Р= 70 х 4 =280 см
Ответ планка 280 см
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Автор:
chippyjacobs - 6 лет назад
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Exercise 1 Questions and answers
Complete the questions and answers with the correct auxiliary verb.
Example Where do you work? In a design studio in the city centre.
1 _____ you have a nice birthday?
Yes, I _____ , thanks. We went out for dinner.
2 What ______ Alan look like?
He’s tall and slim.
3 What ______ you doing when we had the power cut?
I ______ writing an email.
4 _______ Tim working abroad at the moment?
No, he _______ . He’s on holiday.
5 What colour eyes _____ the baby got?
Blue, just like her dad.
6 What_____ your new boss like?
She’s nice. Very friendly and easy-going.
7 ____ you ever been to Cuba?
Yes, we ______ . We went there last year.
8 What ______ Annie like doing?
She enjoys reading and painting.
9 Why _____ you answer the phone when I called you?
Sorry, I _____ listening to music so I didn’t hear it.
10 ______ Fiona been working here long?
No, she ______ . She started about a month ago.
16
Exercise 2 Present tenses and future forms
Complete the blog with the correct form of the verbs in brackets. Sometimes more than one answer is possible.
A day in the life of . . .
My name’s Jake and I’m a student at Edinburgh University. I ’m studying _______(study) Biology. Everyone (1)________ (think) that students have an easy life, but I (2)_________ (work) really hard all the time. As well as my studies, I (3)________ (have) a part-time job in a restaurant. My friends and I (4)_________ (enjoy) life in Edinburgh, but it isn’t all fun. My day usually (5)__________ (begin) at about 7.30, when I go for a run. My best friend, Ian, often (6)________ (come) with me. I (7)__________ (arrive) at the university at about 9.15. When I (8)________ (not have) lectures, I’m expected to be at the lab to do my own research, so I never (9)________ (lie) in bed all day! My girlfriend and I (10)_______ (not see) much of each other at the moment, because she (11)_________ (do) exams soon. She’s in her final year and when she finishes, she (12)_________ (go) abroad to do voluntary work in Africa. I know I (13)________ (miss) her a lot and life (14)___________ (not be) the same, but we hope to see each other in the holidays. Help! It’s 5.30 and I need to get ready for work. It (15)__________ (take) 20 minutes to get to the restaurant, so I (16)_____________ (continue) my blog a bit later . . .
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