Ответ по предмету Математика: 3/7 : 1 1/14=0,4 : ( 4-у)

Предмет: Английский язык, автор: anna1678

Choose the correct Item.(Выберите правильный вариант ответа)
2. At 7:00 p.m. there _____athletics on TV.
a) are b) has c) do d) is
3. Headquarters of many international organizations ____team last year.
a) were b) has been c) have been d) was
4. A chemical works of this region ___ dangerous for the environment.
a) is b) has c) do d) are
5. It takes two ____to plow this land.
a) oxien b) oxis c) oxes d) oxen
6. The ____were looking at the clown in amazement.
a) passer-bys b) passers-by c) passers-bys d) passer-by
7. We went fishing last Sunday but we did not catch ___.
a) many fishes b) much fishes c) much fish d) many fish
8. Nobody could tell if there ____in the basket.
a) were many fruits b) was much fruit c) were much fruit d) were many fruit
9. The newspapers wrote about ¬¬¬¬_____ presence in this event.
a) commander's -in chief b) commanders-in chief c) commander-in chief's d) commander-in chiefs
10. They bought three ____eggs at the market.
a) dozen b) dozen of c) dozens of d) dozens
11. Australia has more than 60_.
a) millions sheep b) million sheep c) millions sheeps d) million sheeps
12. Jack is on the run. _____ still looking for him.
a) Police is b) Police are c) The police is d) The police are
13. Thirty-five dollars ____ for this shirt.
a) is too much b) is too many c) are too many d) are two much
14. Four hundred ____a long way to drive in one day.
a) mile is b) mile are c) miles are d) miles is
15. _____ a branch of linguistics, which I studied at the University.
a) Phonetics is b) Phonetics was c) Phonetics have been d) Phonetics are
16. _____written by hand and were difficult to decipher.
a) Many of the paper was b) Many of the papers were c) Much of the paper was d) Much of the papers were
17. She had obtained _____ of books.
a) dozen b) dozens c) a dozens d) the dozens
18. When I saw Jess, her dark hair _____back in a ponytail.
a) were pulled b) has been pulled c) was pulled d) have been pulled
19. My dad is going to have ____next month.
a) a very well job b) very well work c) a very good work d) a very good job
20. The winter was so cold that the few surviving ___no more than skin and bones.
a) cattle were b) cattle was c) catties were d) the catties were

2 года назад

Предмет: Русский язык, автор: shtraklg

Найти в тексте глаголы с приставками.
Пошёл искать. Нашёл её в саду в маленькой лужице. Посмотрел и тронул ножкой - живая.

2 года назад

Предмет: Русский язык, автор: Аноним

Запишите фамилии в алфавитном порядке Чижов Чехов Толстой Юрский юрская

2 года назад

Предмет: Алгебра, автор: meganickname

Работа с многочленами (Формулы сокращеного умножения)
Вариант I
1.Преобразовать в многочлен:
а) (а + 5)2; в) (2b – 1)(2b + 1);
б) (3y – x)2; г) (4a + 3b)(4a – 3b).
2. Разложить на множители:
а) b2 – 16; в) 49a2b4 – 100c4;
б) a2 + 6a + 9; г) (x + 1)2 + (x – 1)2.
3. Упростить выражение:
(a – 3)2 – 3a(a – 2).
4. Решите уравнение:
а) (x – 3)2 – x(x + 2,7) = 9;
б) 9y2 – 25 = 0.
5. Выполнить действия:
а) (x2 + 1)(x – 1)(x + 1);
б) (3a2 – 6b2)(3a2 + 6b2).
6*. Докажите неравенство: 9x2 + y2 > 6xy – 3.

Вариант II
1.Преобразовать в многочлен:
а) (x + 4)2; в) (3a – 2)(3a + 2);
б) (y – 5x)2; г) (c – 2b)(c + 2b).
2. Разложить на множители:
а) x2 – 81; в) 36x4y2 – 169c2;
б) y2 – 4a + 4; г) (x + 1)2 – (x – 1)2.
3. Упростить выражение:
(c + 6)2 – c(c + 12).
4. Решите уравнение:
а) (x + 7)2 – (x – 4)(x + 4) = 65;
б) 49y2 – 64 = 0.
5. Выполнить действия:
а) (4a2 + b2)(2a – b)(2a + b);
б) (b2c3 – 2a2)(b2c3 + 2a2).
6*.Докажите неравенство:4x2 +9y2>12xy – 0,1.
там где цифра идет после буквы, скорее всего это степень.
более понятно в документе в ворде.
ЗАРАНЕЕ СПАСИБО ОГРОМНОЕ!)

9 лет назад

Предмет: Математика, автор: nadeghda12

двум классам поручили расчистить от снега школьный двор

9 лет назад

3/7 : 1 1/14=0,4 : ( 4-у)​

Ответы

3/7 : 1 1/14=0,4 : ( 4-у)