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В треугольнике АВС О-точка пересечения медиан.Выразите вектор ВЕ через векторы ОВ и ДС
Ответ В
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Предмет:
Геометрия -
Автор:
julianagfvt - 5 лет назад
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Ответы 1
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Ответ:B)
Объяснение: BC=DС-DB BC=2BE OB=2/3DB→DB=3/2OB
2BE=DС-3/2OB BE=1/2DC-3/4OB
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Автор:
jordyn85 - 5 лет назад
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тест по грамматике английского языка прошу очень)
17. She usually ________________ all materials herself.
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types
is typing
will type
type
18. ________________ house is of modern design.
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that’s
these
those
this
19. They ________________ by 5 o'clock.
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has returned
have returned
returned
had returned
20. We shall discuss the results when we ________________ our experiments.
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are finished
finishes
finish
will finish
21. What colour are ________________ pens?
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those
thus
this
that
22. When we came into the hall they ________________ this problem.
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discussed
have discussed
are discussing
were discussing
23. Who can tell me where ________________?
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my key was
my key had been
my key is
is my key
24. I invited my friend to ________________ place.
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mine
me
I
my
25. The room is large but ________________ windows are not large.
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their
her
its
our
26. Show ________________ the plan of our work.
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them
their
theirs
they
27. The clothes are absolutely wet. I should dry ________________.
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theirs
them
it
their
28. When ________________ you buy the new TV set?
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did
were
are
have
29. We wanted to know if they ________________ to the party
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come
would come
came
have come
30. The children promised to call their parents as soon as they ________________.
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arrive
would arrive
will arrive
arrived
31. If it ________________ rain, we'll have the party outside.
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won't
didn't
wouldn't
doesn't
32. The news ________________ so shocking.
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are
have been
was
were
33. I know that the news ________________ so amazing that you can’t believe it.
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are
is
were
have been
34. Do you know when he ________________ ?
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will come
come
will comes
shall come
35. I wonder where ________________ now.
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was he
he was
is he
he is
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Предмет:
Английский язык -
Автор:
mimiuynd - 5 лет назад
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Ответов:
1 -
Смотреть
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решите пожалуйста логарифмическое неравенство:
lg(x+5)<2-lg2
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Объясните пожалуйста, когда не/до пишется слитно, а когда раздельно?
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Предмет:
Русский язык -
Автор:
ringo3hjz - 5 лет назад
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Ответов:
1 -
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Матеріали які руйнуються за незначних деформацій наз.
A) аморфними
Б) пластичними
В) крихкими
Г) пружними
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