Вычислите значение выражения. (3/2)^2 -4^-1 • 5 - №31154472

Вычислите значение выражения.
(3/2)^2 -4^-1 • 5
- Предмет:
  Алгебра
- Автор:
  noeldurham
- 6 лет назад

Ответы 1

$(\frac{3}{2})^{2} - 4^{-1} * 5 = \frac{9}{4} - \frac{1}{4} * 5 = \frac{9}{4} - \frac{5}{4} = 1$
- Автор:
  morgan21
- 6 лет назад
- 0
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Тест по английскому языку "Past Tenses"
Выберите ваш вариант ответа вместо пропусков.

1.
I didn't see Linda last month because she was travelling around Europe at that time.
had travelled
had been travelling
was travelling
travelled
2.
When I was young, I used to think that people over forty were very old. Now that I am forty myself I don't think so.
had thought
thought
was thinking
used to think
3.
Lucy her seatbelt before the accident happened that's why she was badly hurt.
hadn't been wearing
didn't wear
hadn't worn
wasn't wearing
4.
The trouble started when Mrs. Leslie Cady control of her car on a narrow mountain road.
had lost
lost
had been losing
was losing
5.
Greg didn't want to be late for the theatre. He drove as fast as he could. The play as he walked in the door of the theatre.
just began
had been just beginning
had just began
was just beginning
6.
Tom breakfast this morning because he didn't have any time
hadn't eaten
didn't eat
wasn't eating
hadn't been eating
7.
While the kids in the garden, their mother was hurriedly cooking dinner.
were playing
played
had played
had been playing
8.
Scarcely out of the window when I saw a flash of light.
I was looking
was I looking
had I looked
had I been looking
9.
Mrs. Robson died in her sleep. Her doctor told me she from a weak heart for some time.
suffered
was suffering
had suffered
had been suffering
10.
Our neighbours called the police when they found out that somebody into their house.
broke
had been breaking
had broken
was breaking
11.
Our clothes were wet because we in the rain.
had walked
walked
were walking
had been walking
12.
Hardly the place of our destination when it became quite dark.
we were reaching
we had been reaching
had we reached
we reached
13.
I had a cup of tea for breakfast because I of coffee.
had run out
was running out
ran out
had been running out
14.
Suddenly they heard a strange noise and at each other in horror.
had been looking
had looked
were looking
looked
15.
The two boys came into the house. One had a black eye and the other a cut lip. They .
had fought
had been fighting
fought
were fighting
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