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В конусе образующая составляет с плоскостью основания угол 45*. Найти площадь поверхности в объеме конуса, если радиус основания конуса 6 см. (с рисунком)
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Автор:
anahimiranda - 5 лет назад
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Всё решаем по формулам.
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Автор:
bullwinkleherrera - 5 лет назад
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13 -летний школьник попросил у родителей разрешения почтив клуб на дискотеку с подругой. Родители ему в этом отказали и пояснили свою позицию тем, что, по слухам, посетители этого клуба употребляют наркотики. В ответ школьник сказал родителям, что они нарушают его право на участие в культурной жизни и право пользоваться учреждениями культуры.1 На чьей стороне в этом споре закон : школьника или его родителей? Свой ответ аргументируйте.2 Привидите 3 примера, когда права человека могут быть приостановлены.
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Предмет:
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Автор:
avaokoz - 5 лет назад
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Определить времена в предложениях:
1) if he had be cleverer and more persistent he would have receired a better mark for the coming test.
2) margie just called and said she would be here at 8 o`clock. by the time she gets here, we had been waiting for her for two hours.
3) his new book will be finished next year.
4) if he had booked tickets beforehand, he would have got much better seats.
5) the pupil explained to the teacher that he couldn`t come to school that day because he had been be ill.
6) sara didn`t pay any attention to what i had been telling her to do. oh, if she would have taken my advice!
7) if he had sold out everything yesterday in the day time, he would have left for home immediately.
8) this theatre was built over 100 years ago.
9) if you were not busy tomorrow i would invite you to go on a picnic with us.
10) they told me they had been watching a film since four o`clock.
11) if the firefighters don't have the necessary skills, they won't be able to save the house.
12) i was given a very interesting book at the library last Friday.
13) why do you look so scared? it seems as if you saw a ghost.
14) the other day i watched a dog dance in the middle of the square. if I hadn’t seen it with my own eyes, i would have never believed it.
15) i`d love to visit London. oh, if only i had this chance!
16) the problems of the family usually are usually talked briefly at dinner.
17) for the past few days I was working in Jack`s office, as my own is being decorated now.
18) she told me that she didn’t like dresses she has just bought.
19) she couldn`t remember what she had done the day before.
20) the sun had set by the time we got home.
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Предмет:
Английский язык -
Автор:
bruce51 - 5 лет назад
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Present / Past. Read the text. Fill in the blanks in the questions below.
People used to get water mostly from streams, lakes and rivers. Then cities started growing. This brought many people to one place. They needed more water for their homes and factories.
Sometimes it didn’t rain for a long time. Then the rivers had very little water left. People learned to save water for these dry times. They built places in which to store water. They called these places reservoirs.
Reservoirs hold water until people in cities need it. Large pipes carry water from reservoirs to the city. People also get water from wells.
Years ago, people lifted water out of wells in buckets. This was hard work and took a long time. Now they pump the water up. The pump makes it easier for people to get water where they want it.
A) do B) does C) did D) is E) are F) was G) ---
1. Where _ people use to get water from?
2. What _ started growing?
3. Why _ the rivers have very little water left?
4. What _ people learn to do for the dry times?
5. What _ people build to store water?
6. How long _ reservoirs hold water?
7. What places _ people call reservoirs?
8. What _ reservoirs for?
9. How _ people lift water out of wells years ago?
10. _ you think, it _ hard work?
11. How long _ it take them to lift water out of wells years ago?
12. What _ the way to get water now?
13. What _ they do to lift water out of wells now?
14. _ the pump make it easier to get water where they want?-
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Английский язык -
Автор:
frodo - 5 лет назад
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стороны оснований правильной треугольной усеченной пирамиды равны 4 дм и 2 дм. высота боковой грани 5 дм. вычислите площадь боковой поверхности усеченной пирамиды
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Предмет:
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Автор:
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