Определите площадь поперечного сечения стального провода длиной 200 м, если при напряжении -120 В по нему течет ток 1,5 А.

СРОЧНО ПОМОГИТЕ СДЕЛАТЬ!!!

Раскрыть скобки:

1)Where you usually (to spend) the summer?

2) My elder sister (to haVE) a music lesson.She always (to have)  a music lessons on Friday.

3)The Sun (to rise) in the East.

4)I (not to hear ) the news yet.

5)I (to read) "War and Peace"  by L.Tolstoy now.I (not to finish) it yet.It (to be) a very good boo.I (to like) it very much.

6)I (TO Take) my last exam next Monday.

7)If you (to travel) by car.you (to see) a lot of plases of interest.

8) (to be) anything matter with you& You (to be) so pale.-Nothing the matter.I just (to finish) my work and i (to be) a little tired.

9)You (to be) here before? YEs i (to spend) my holidays here last year.

10) yOU (to be) to the laboratory this week?

Складіть квадратне рівняння, корені якого 2 і 5

Придумать задачу для выражения, к разности 85 и 78 прибавить 85.