Тест на тему Разнообразие царств живой природы

Ниже приведен тест по теме: Свойство степеней с целым показателем. Тип вопросов: открытые. 15 вопросов. Ответы не приводятся.

1. Упростите выражение: a^3 · a^5.
2. Упростите выражение: (a^2)^4.
3. Упростите выражение: (ab)^3, где a и b — переменные.
4. Найдите значение: a^(-2) · a^5, при условии a ≠ 0.
5. Чему равен a^0? Объясните кратко и приведите примеры.
6. Преобразуйте в дробь: a^(-4), при условии a ≠ 0.
7. Упростите выражение: (a/b)^2, при условии a ≠ 0 и b ≠ 0.
8. Упростите выражение: a^4 · a^(-7).
9. Упростите выражение: (c^3)^2.
10. Упростите выражение: x^7 / x^2, при условии x ≠ 0.
11. Упростите выражение: (2x)^3.
12. Приведите к виду a^(-2) · b^(-3) для выражения (a^2 · b^3)^(-1).
13. Упростите выражение: (a^2 b)^4.
14. Объясните свойство a^0 = 1 и приведите два примера использования этого свойства.
15. Упростите выражение: (3x^2)^3 / (9x^5), при условии x ≠ 0.

Что-то пошло не так. Ошибка: Request timed out.

Тест по английскому языку: Настоящие времена (Present Tenses)

Инструкция: Выберите один правильный ответ из предложенных вариантов.

1. She ___ to school every day.

   • a) go
   • b) goes
   • c) going
   • d) gone

2. I ___ my homework right now.

   • a) do
   • b) does
   • c) am doing
   • d) did

3. They usually ___ breakfast at 7 AM.

   • a) have
   • b) has
   • c) having
   • d) had

4. He ___ a book at the moment.

   • a) reads
   • b) read
   • c) is reading
   • d) reading

5. We ___ to the cinema every Saturday.

   • a) go
   • b) going
   • c) gone
   • d) goes

6. She ___ her grandmother every weekend.

   • a) visits
   • b) visit
   • c) visiting
   • d) visited

7. The sun ___ in the east.

   • a) rise
   • b) rises
   • c) rising
   • d) rose

8. He always ___ to the gym after work.

   • a) go
   • b) goes
   • c) going
   • d) gone

9. I ___ my friends right now.

   • a) call
   • b) calls
   • c) am calling
   • d) called

10. They ___ a lot of fun on weekends.

    • a) have
    • b) has
    • c) having
    • d) had

11. It ___ quite often in the summer.

    • a) rains
    • b) rain
    • c) raining
    • d) rained

12. She usually ___ coffee in the morning.

    • a) drink
    • b) drinks
    • c) drinking
    • d) drank

13. We ___ a movie right now.

    • a) watch
    • b) watches
    • c) are watching
    • d) watched

14. The children ___ outside every day after school.

    • a) play
    • b) plays
    • c) playing
    • d) played

15. I ___ a new project at work these days.

    • a) start
    • b) starts
    • c) am starting
    • d) started

16. Does she ___ Spanish?

    • a) speak
    • b) speaks
    • c) speaking
    • d) spoke

17. We ___ for dinner at 6 PM.

    • a) eats
    • b) eat
    • c) eating
    • d) ate

18. They ___ their bike to school every day.

    • a) ride
    • b) rides
    • c) riding
    • d) rode

19. Right now, I ___ my favorite song.

    • a) listen
    • b) listens
    • c) am listening
    • d) listened

20. He ___ his lunch at work every day.

    • a) brings
    • b) bring
    • c) bringing
    • d) brought

21. I usually ___ my homework in the evening.

    • a) do
    • b) does
    • c) doing
    • d) did

22. She ___ a lot of books this month.

    • a) reads
    • b) read
    • c) is reading
    • d) reading

23. The train usually ___ at 3 PM.

    • a) arrive
    • b) arrives
    • c) arriving
    • d) arrived

24. We ___ new places on our vacation.

    • a) explore
    • b) explores
    • c) exploring
    • d) explored

25. They ___ a new game currently.

    • a) play
    • b) plays
    • c) are playing
    • d) played

26. I ___ a daily exercise routine nowadays.

    • a) have
    • b) has
    • c) having
    • d) had

27. She often ___ to music while studying.

    • a) listens
    • b) listen
    • c) listening
    • d) listened

28. Right now, they ___ to the teacher.

    • a) talk
    • b) talks
    • c) are talking
    • d) talked

29. He ___ for his exams these days.

    • a) studies
    • b) study
    • c) studying
    • d) studied

30. I ___ to travel next summer.

    • a) want
    • b) wants
    • c) wanting
    • d) wanted

Успехов на тесте!