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как графически решить систему двух линейных уравнений с двумя переменными? (любую с картинки)
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Предмет:
Математика -
Автор:
cohen - 6 лет назад
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Ответы 1
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надо построить эти две прямые и точки где они пересекутся будут решением системы
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Автор:
lourdesmmpi - 6 лет назад
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0
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Пожалуйста помогите очень!!!!!
5 класс домашнее задание
Exercise № 1. Use the verbs in brackets in Present Simple or Past Simple.
I usually (spend (1)) my summer holidays together with my parents in a village where we (stay (2)) till late in autumn. But this year I (go (3)) to a camp. Our camp (be (4)) in a forest, on the bank of a river. We (have (5)) a very good time there. Almost every day we (swim (6)) in the river. Also we often (go (7)) on tramps into the forest. There (be (8)) a farm near our camp, and we (visit (9)) it very often. We (decide (10)) to help the farmers and (spend (11)) three days there doing different kinds of work. When we were leaving, the farmers (thank (12)) us and we (invite (13)) them to visit our camp. I (get (14)) so sun-tanned during my stay in the camp that my classmates (tell (15)) me now that I (look (16)) very much like an Indian.
Exercise № 2. Arrange the following so as to form sentences:
1) The doctor 2) The pupils 3) The workers 4) Gus 5) My sister
a) were given a new text.
b) will be sent for the book.
c) was sent for.
d) is always given presents for her birthday.
e) were given new flats.
Exercise № 3. Fill in the blanks with the words and phrases given.
manage; comfortable; right; near at hand; to argue; power; to supply
1) I ___________ with him because I was sure that I was ___________.
2) There was no water ___________ , so we asked Peter to go to the river and bring some.
3) Our new room is very ___________.
4) I am very busy these days, but I think I’ll ___________ somehow to see you tomorrow.
5) This electric power-station ___________ the city with ___________ .
Exercise № 4. Use the verb in brackets in the Present Participle or in the Past Participle.
1) I think that the boy (stand) there is his brother. 2) I was not easy to find the (lose) stamp. 3) Here is the letter (receive) by me yesterday. 4) He came into the room (smile) happily. 5) Look at the beautiful flowers (gather) by the children.
Exercise № 5. Fill in the blanks with the words from the box.
step; to ruin; cracked; length; tower
1) The ground is ___________ because this summer has been very hot and dry. 2) Our school building is 20 metres high and its ___________ is about a hundred metres. 3) There is a big clock on the tallest ___________ of the Kremlin. 4) If you go on sitting up nights like this, you’ll ___________ your health. 5) The old woman went up a few ___________ and then stopped to have a short rest.-
Предмет:
Английский язык -
Автор:
ernesto - 6 лет назад
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Ответов:
3 -
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Хватит ли рулона упаковочной бумаги шириной 80 см и длиной 5 м для оформления трех подарочных коробок, размеры которых 30*30*20 см, 50*50*80 см и 20*20*20 см. Можно ли данные коробки использовать для упаковки телефона, имеющего форму прямоугольного параллелепипеда с измерениями 15*10*2 см, планшета размерами 30*20*2 см и лыж размерами 1м 20 см*10 см*10см?
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Математика -
Автор:
jaidyn27 - 6 лет назад
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Ответов:
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В треугольнике ABC : угол B=60 градусов, угол A=75 градусов, сторона AC=12.Найти сторону AB
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