A) Read the table. How do we form theinterrogative form of the past simple?b) Use the phrases to ask and answerquestions about the ancient Egyptians.• live on boats? • work as farmers?• fish on the river? . sail boats?• play music? • play football?• girls attend school?​

решение. 1. ri=2*r; rii=r/2; ri/rii=4; не надо ни о какой площади сечения говорить. два куска проволоки содинили последовательно, получили ri=2*r; два куска той же проволоки соединили параллельно, получили rii=r/2; ну, а теперь раздели первое на второе!

а теперь общий случай: ri=r*n; rii=r/n; ri/rii=n^2; кусок проволоки разрезали на n одинаковых кусков. сначала эти куски соединяют последовательно: ri=r*n; затем соединяют параллельно rii=r/n; ну и дели первое на второе и делай выводы.

My last vacation was from 1 March. I liked my vacation. On Sunday, I met with my friends and we went for a walk Bought a lot of balloons. It was fun On Monday, I met with a friend at the music school. He told me that he goes to his teacher for guitar and invited me to go with him. On Tuesday, I went with Mom in Red Square. On Wednesday and Thursday we were preparing for the holiday March 8. Dad and Mom were preparing gifts and sister. On Friday, I went to work for my mother. On Saturday we prepared various delicious dishes, and on Sunday celebrated the 8th of March.