Предмет: Алгебра, автор: d7k894cfg6

1.При яких значеннях змінної х вираз не має змісту?

x=2x<2 x‡1

2.При яких значеннях змінної х вираз дорівнює нулю?

(16.)



.Скоротіть дріб. (16.)

а-2b

4.Зведіть дріб до знаменника 15ху. (16.)

5.Виконайте додавання: + . (16.)

6.Знайдіть різницю: - (1б.)

7.Виконайте дії: - +.

8.Знайдіть різницю дробів і .

9.Спростити вираз: + + .
СРОЧНО!!!!!

Ответы

Автор ответа: fanaf981
1

Ответ:

1)3

2)4

3)45

4)56

5)25

6)55

7)37

8)46

9)89

И все 66


d7k894cfg6: обожаю таких людей
Похожие вопросы
Предмет: Математика, автор: nikanevmerzicka73
Предмет: Английский язык, автор: llb429525
1. It was a difficult and important exam and I passed it.
a) relieved b) guilty c) disappointed
2. I was away from home and I missed my family.
a) homesick b) embarrassed c) excited
3. ‘I want you to stop seeing your friends so you can spend all your time with me.’
a) possessive b) bad-tempered c) easy-going
4. We lost the match – the other team scored in the last minute!
a) reserved b) disappointed c) scared
5. The shop assistant was very rude to me.
a) shocked b) curious c) fed up
6. I forgot to give my brother a message, and he missed his friend’s party.
a) wise b) guilty c) loyal
Task 2. Fill in the gaps.
7. Thank you for your email, it was great to ____ from you.
a) write b) look c) hear
8. Sorry for not _____ earlier
a) write b) wrote c) writing
9. I'm looking _______to hearing from you soon.
a) forward b) for c) at
10. Anyway, that's all _____.
a) then b) for now c) now
11. I'm ____ to hear that you didn't get the job.
a) glad b) sorry c) unfortunately
12. I'm writing to ______ you know that I'm moving into a new flat.
a) inform b) tell c) let
Task 3. Complete the dialogue in the office.
13. A: Here’s my design for the new advertising campaign. What do you think?
B: I’m not_______ that this is what the client wants.
a) convinced b) right c) got a point
14. A: But they asked for bright colours.
B: I think _______. They said they wanted the design to be fresh and fun.
a) not so sure b) get me wrong c) I disagree
15. A: But this design is fresh and fun.
B: I’m ______ .
a) not so sure b) so wrong c) what you mean
16. A: Really?
B: Don’t _______, I like your design but it doesn’t fit the brief.
a) get me wrong b) convinced c) right
17. A: I see _______ . I guess it’s a bit too flashy.
B: What about changing the red and the stars?
a) right b) got a point c) what you mean
18. A: Maybe you’ve got a point there. I think you’re _______ .
a) what you mean b) right c) definitely
19. A: Is that better?
B: Yes, .... .
a) cool b) definitely c) great
Task 4. Put the words in the correct order to make sentences.
20. meet / to / finally / It’s /in person. / you / so good
a) It’s so good in person to finally meet you.b) It’s so good to finally meet you in person.
c) It’s so good meet you in person to finally.
21. there / else / need? / Is / you / anything
a) Is there anything else you need?
b) Is anything there else you need?
c) Is anything else you there need?
22. you / How / are / it? / finding
a) How are it finding you?
b) How are you finding it?c) How you are finding it?
Task 5. Choose the best answer to the question.
23. - By the way, where in Peru are you from?
- ...
a) I didn’t know that!
b) I’m from Cusco.
c) Yes, I am.
24. - I miss the mountains.
- ...
a) I know what you mean.
b) Oh, nothing much.
c) Oh lovely.
25. - I used to live in Peru.
- ...
a) Really? I didn’t know that!
b) I know what you mean.
c) Yes, I did.