Два отрезка, длины которых 13 дм и 37 дм, упираются концами в две паралельные плоскости. Проэкия меньшего из них на плоскость равна 5 дм. Найдите длину проэкции большего отрезка.

ПОМОГИТЕЕЕЕ  ПОЖАЛУЙСТА=) 
Put the verbs in brackets into the Present Progressive from. Comolete the sentences with right pronous.

1. What (be) his advice? - I haven't asked him for ... yet.

2. Your luggage (be) too heavy. They'll have to charge you for ... .

3. Her clothes (show) her good taste. ... really (look) great.

4. The football team (take) a shower at the moment. You can talk to ... .

5.  Physics ( become) one of the most important subjects in our school. We all enjoy studying ... .

6. The weather in this part of the world (change) very fast. You have to check ... before going out.

7. Where (be) my jeans?Have you seen ... ?

8. These gloves always (keep) me warm. You should try ... on.

9. Her good looks (make) her very proud. - Yes , she thinks about ... all the time.

10. The news you brought (change) everything. We need to discuss ... as soon as possible.

11. His money (be) on the table. He always forgets where he has left ... . 

12. They (change) posters on the Opera House. - I know. A new ballet (come) here next week.

слили 2 раствора серной кислоты.240 г. 30%-го и 180 г. 5%-го.расчитайте массовую долю кислоты в полученом расстворе

Вон у берега грудо пружин от раскладушки растрепанные остатки веника

Есть здесь причастный? или деепричастный оборот? 

5(3-2у)-4(9-у)=3(у+5)