в одном метре 1000миллиметров 

 

Раскройте скобки, употребляя глаголы в Past Simple или Past Perfect.

1. Tom (to return) from the cinema at five o'clock.
2. Tom (to return) from the cinema by five o'clock.
3. I (to finish) my homework at seven o'clock.
4. I (to finish) my homework by seven o'clock.
5.He (to think) that he (to lose) the money.
6. Ann (to tell) me that she (to see) an interesting film.
7. When I (to come) home, mother already (to cook) dinner.
8. When father (to return) from work, we already
(to do) our homework.
9. When the teacher (to enter) the classroom, the pupils already (to open) their books.
10. Kate (to give) me the book which she (to buy) the day before.
11. Nick (to show) the teacher the picture which he (to draw).
12. The boy (to give) the goats the grass which he (to bring) from the field.
13. Mother (to see) that Nick (not to wash) his hands.
14. The teacher (to understand) that Lena (not to do) her homework.
15. I (to know) that my friend (not yet to come).
16. When I (to wake) up yesterday, father already (to go) to work.
17. Nick (to think) that his father (not yet to come) home.
18. Mary (to tell) us that she (to cook) a good dinner.
19. Yesterday I (to find) the book which I (to lose) in summer.
20. When we (to come) to the station, the train already (to leave).

дети играли в магазин,мальчик сделал покупки на 25к и 32к в кассу он отдал 1р сколко копеек сдачи он должен получить

Основание прямой призмы - прямоугольный треугольник с гипотенузой 25 см и катетом 20 см. Меньшая боковая грань и основание призмы одинаковы. Найдите площадь боковой и полной поверхности призмы.

1) В треугольнике ABC угол C равен 90 градусов, sinА = корень из 15/4. Найдите cosA

2) Углы треугольника остносятся как 2:9:34. найдите меньший из них. Ответ дайте в градусах.

3) Вектор AB с концом B(4; -3) имеет координаты (4;22). Найдите абсциссу точки А.