В трапеции ABCD с основаниями AD и BC точка О - точка пересечения диагоналей. BO:OD=3:4. Найдите отношение площадей треугольников ABD и ABC.

Как должен был писать образованный китаец ?

Расставьте события в хронологической последовательности.

1.Выдворение Л.Д. Троцкого в СССР

2.Переименование РКП(б) в ВКП(б)

3.Шахтинский процесс

4.Введение должности генерального секретаря ЦК РКП(б)

Combine the two sentences into one using "IF"-clause... 1.The taxi may arrive late.Then I'll miss my train. 2.Steve hopes to pass his exams.Then he will go to University. 3.Perhaps Steve won't go to University.Then he'll start to work in an office. 4.James wants to become a tennis player.Then he'll make a lot of money. 5.Perhaps he will not win the game.Then he will give up tennis. 6.Caroline wants to change her job.Then she will earn more money. 7.Daniel wants to go to the village.Then he will have a good rest there. 8.James wants to go to the doctor.He will prescribe some medicine for the flu. 9.Dan is going to jump off the tree.Then he will hurt himself. 10.She is going to take some medicine.Then she will feel better.

Постройте график функции y= |x| (x-2)+2 и определите, при каких значениях m прямая y=m имеет с графиком ровно две общие точки.