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Необходими выборов две трубы цилиндрической формы. Диаметр и длина первой равна 9мм и 10см, а второй - 5мм и 19см. Для выготовления какой из труб понадобиться больше материала и на сколько больше?
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Предмет:
Геометрия -
Автор:
inocencio2jyg - 6 лет назад
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Ответы 1
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10 см= 100 мм и это получается 109 мм; 19 см= 190 мм=195 мм; решение 195(мм)-109(мм)=86(мм); Ответ: нужно больше второй трубы и на 8 см 6 мм чем первой.
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Автор:
dallas1cqh - 6 лет назад
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Choose the right variant.
1.___beforehand, we___the catastrophe.
a) did we know, would prevent
b) would we know, had prevented
c) had we known, would have prevented
d) should we know, had prevented
2.1 don't know how___him. I wish I___his name.
a) address, did not know
b) to address, knew
c) addressing, would know
d) to address, should know
3.1 look forward to___a rest. I___as if my head _ splitting.
a) having, feel, were
b) having, feel myself, were
c) have, had felt, were
d) have, am feeling, is
4. He couldn't remember his mother___, But would everything_______if mother hadn't died?
a) dying, be, differently
b) to die, have been, as different
c) dying, have been, different
d) die, has been, so different
5. "Oh, Mary," she said. "I wish you___with us, for we had___fun."
a) had been, such a
b) were, so___
c) would be, so a
d) had been, such___
6.1 remember his colour___away in a moment and he seemed___as if he___.
a) go, breathing, had been running
b) to go, to breathe, ran
c) going, to breathe, had been running
d) have gone, to be breathing, was running
7. The vase is beautiful. You_______to match___ you___.
a) wouldn't find, another, unless, had tried
b) wouldn't have found, the other, if, would have tried
c) shouldn't find, the other, unless, tried
d) wouldn't find, another, if, tried
8. If you___the medicine the doctor prescribed you, you_______now.
a) had taken, would feel, much better
b) took, would feel, much more well
c) would take, would feel yourself, much more better
d) had taken, would have felt, much more good
9.1 remember it so___as if it___only yesterday.
a) clear, happened
b) clearly, had happened
c) clear, would have happened
d) clearly, would happen
10. If you___the article I recommended you, you ___how___such questions.
a) had read, had known, to answer
b) read, would know, the answer
c) would have read» would know, answer
d) had read, would know, to answer
11.1 must be off now. If it___not so___, I___a little longer.
a) were, lately, would stay
b) were, late, would stay
c) had been, late, would have stayed
d) wouldn't be, lately, stayed
12.___I___the story from his own lips I___ that he was capable of___action.
a) if, had heard, would never believe, such
b) unless, had heard, would have never believed, such an
c) in case, have heard, would never believe, so an
d) provided, had heard, would have never believed, such
13. In order to make our demands effective and to get the authorities___them we suggested that there ___no return to work today.
a) to fulfil, be
b) fulfil, should be
c) fulfilled, would be
d) fulfilling, were
14.1 am going to have my kitchen___. It is necessary that every crack___covered; also between___floor and___door.
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b) returned, the
c) return,___
d) should return, the
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c) had said, would have, she going
d) said, had, her go
17. He thought how hard the wind___and how the cold sharp rain___in his face at that moment, if he___ ___at home.
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b) is blowing, will be beating, is not sitting, comfortable
c) blew, beat, was not sitting, comfortably
d) had blown, had beaten, were not sitting, comfortable
18.1___to your place with pleasure___nothing ___me,
a) will come, unless, prevented
b) will come, if, prevents
c) would come, unless, prevented
d) would have come, providing, would prevent
19. When they_______lunch he suggested that they ___a stroll to___Luxembourg museum.
a) have finished, the, should have, the
b) finished,___, had,___
c) would have finished, a, would have,___
d) had finished,___, have, the
20. You never did anything___to___. If you _ you___more support now.
a) well, someone, did, would have
b) good, anyone, did, would have had
c) well, anyone, had done, would have had
d) good, anyone, had done, would have
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