Предмет: Математика, автор: eldar3839

5целлых9/25-2целлых5/14
40баллов

Ответы

Автор ответа: timoffeyershov

1

Ответ:

(5-2)+(9/25-5/14)=3+1/350=3 1/350

Пошаговое объяснение:

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: Аноним

Perfect Tenses Choose the right variant
1. My parents (be) to the USA many times
a) have been
b) had been
c) will have been
d) is being
2. Julia (finish) all the housework by three o’clock and we’ll go for a walk.
a) will finish
b) will have finished
c) have finished
d) had finished
3. Aunt Polly punished Tom Sawyer because he (be) naughty.
a) has been
b) had been
c) will have been
d) finishes
4. Why are you looking so unhappy? –I (lose) my purse.
a) have lost
b) had lost
c) will have lost
d) lost
5. We are going to buy a car. By the end of next month our family (save)money for it.
a) will save
b) will have saved
c) have saved
d) had saved
6. Tell Tommy about these wonderful islands. He (never / hear) about them.
a) has never heard
b) had never heard
c) will never have heard
d) heard
7. The workers say that they (build up) a district by the beginning of 2000.
a) will have built up
b) will build up
c) have built up
d) had built up
8.A mother asked the children if they (buy) some biscuits for tea.
a) has bought
b) had bought
c) bought
d) will have bought
9. I (leave) some photos to be developed. Are they ready?
a) have left
b) had left
c) will have left
d) leave
10. She (have lunch) by the time we arrive.
a) will have had
b) will have
c) have had
d)had had
11. Mr. Jackson said that he (already/buy) everything for lunch.
a) will already have bought
b) will buy
c) have bought
d) had bought
12. I’ m afraid I (forget) my book at home.
a)will have forgotten
b) will forget
c) have forgotten
d) had forgotten1
13. ... the secretary (yet/come)?
a) will... have come yet
d) had... come yet
b) yet ...will come
c) has... come yet
14. I wasn’t hungry because I (just/have) breakfast
a) have just had
b) had just had
c) will just have had
d) had
15.... you (have) a holiday this year.
a) have had
b) had had
c) will have had
d) had
16.I (not/see) Tom for ages.
a) won’t have seen
b) see
c) haven’t seen
d) hadn’t seen
17.Alice askedher brother where he (arrange) to meet his friends.
a) has arranged
b) had arranged
c) will have arranged
d) arrange
18.By the time I come they (go).
a) will have gone
b) will go
c) have gone
d) had gone
19.Alan (work) in the bank for a year.
a) had worked
b) has worked
c) will have worked
d) worked
20.They couldn’t believe he (give up) his job in the bank. He (make) a good livingthere.
a) had given up, had made
b) has given up, had made
c) will have given up, has made
d) gave, made
21. We ( already/ build) this plant by the end of 1997.
a) had already built
b) have already built
c) will have built
d) built
22.In three years’ time I (take) my degree.
a) have taken
b) had taken
c) will have taken
d) took
23. He (do) it since we left him.
a) has done
b) had done
c) will have done
d) do
24. We (sit) here for two hours.
a) have sat
b)had sat
c) will have sat
d) sat
2. The machines … in Scotland.
a)made b) is made c) are made
3. The money … at the bank.
a. Are changed b) changed c) is changed
4. The children … some food.
a. Will give b) were gave c) were given
5. Several people … in an accident last night.
a. Has been hurt b) were hurt c) were hurted
6. The garages …every day.
a. Are cleaned b) were clean c) cleaned
7. This computer … to several countries.
a. Is exported b) is export c) exported

5 лет назад

Предмет: Алгебра, автор: ezzamarria

Помогите, я тупая!!!!!!!!!!!!

5 лет назад

Предмет: Математика, автор: versachexdior

матем задача №10
Вычислите:
$( \cos \frac{2\pi}{15} + \cos \frac{4\pi}{15} ) - ( \cos \frac{7\pi}{15} + \cos \frac{\pi}{15} )$

5 лет назад

Предмет: Алгебра, автор: vicusiKKlymchuk14

ПОМОГИ !!!!!!!!!! ПРОШУ ПЖЖЖЖЖ х(х^2-3х)

9 лет назад

Предмет: Физика, автор: elenaandreevna2003

100 шагов перевести в метры
1 шаг = 20 см

9 лет назад