Тест на тему Семья - как малая группа

Тест по теме "Логарифмы" для 10 класса

Вопрос 1:

Какое из следующих равенств верно для логарифмов?
a) ( \log_a(b \cdot c) = \log_a(b) + \log_a(c) )
b) ( \log_a(b + c) = \log_a(b) + \log_a(c) )
c) ( \log_a(b) = a^{\log_a(b)} )
d) ( \log_a(a^b) = b + \log_a(b) )

Правильный ответ: a) ( \log_a(b \cdot c) = \log_a(b) + \log_a(c) )

Вопрос 2:

Какое значение имеет ( \log_{10}(100) )?
a) 1
b) 2
c) 10
d) 100

Правильный ответ: b) 2

Вопрос 3:

Если ( \log_2(x) = 5 ), то чему равно ( x )?
a) 5
b) 10
c) 16
d) 32

Правильный ответ: d) 32

Итоги теста:

1. Вопрос 1: a) ( \log_a(b \cdot c) = \log_a(b) + \log_a(c) )
2. Вопрос 2: b) 2
3. Вопрос 3: d) 32

Тест по английскому языку для 9 класса: Present Perfect Continuous

Инструкции: Заполните пропуски в предложениях, используя правильную форму глагола в Present Perfect Continuous.

1. She __________ (study) for three hours.
2. They __________ (wait) for you since 5 PM.
3. I __________ (read) this book for a week already.
4. We __________ (play) soccer all afternoon.
5. He __________ (work) here since last year.
6. The children __________ (watch) TV for the last hour.
7. You __________ (practice) piano for two months.
8. It __________ (rain) for two days straight.
9. My brother __________ (learn) Spanish since last summer.
10. She __________ (clean) the house since morning.
11. They __________ (live) in London for five years.
12. He __________ (exercise) regularly for a long time.
13. We __________ (discuss) this issue for over an hour.
14. I __________ (try) to contact you for a week.
15. The team __________ (train) hard for the competition.
16. She __________ (cook) dinner for her family since 5 PM.
17. You __________ (look) for your keys for a while.
18. They __________ (work) on this project for a month.
19. I __________ (enjoy) this course since it started.
20. He __________ (do) his homework for two hours.
21. We __________ (watch) that series for weeks.
22. She __________ (paint) the fence all day.
23. The dog __________ (bark) since this morning.
24. I __________ (feel) great since I started exercising.
25. They __________ (save) money for their vacation for a year.
26. He __________ (play) the guitar since he was a child.
27. We __________ (explore) the city for hours.
28. She __________ (write) her novel for a long time.
29. They __________ (research) for their project all week.
30. I __________ (help) my parents with their business recently.

Ответы:

1. has been studying
2. have been waiting
3. have been reading
4. have been playing
5. has been working
6. have been watching
7. have been practicing
8. has been raining
9. has been learning
10. has been cleaning
11. have been living
12. has been exercising
13. have been discussing
14. have been trying
15. have been training
16. has been cooking
17. have been looking
18. have been working
19. have been enjoying
20. has been doing
21. have been watching
22. has been painting
23. has been barking
24. have been feeling
25. have been saving
26. has been playing
27. have been exploring
28. has been writing
29. have been researching
30. have been helping

Удачи на тесте!