giải hộ em bài này voi ạ em cảm ơn ạ

Cho 100 điểm A,A1,A2,A3,...,A100 trong đó không có ba điểm nào thẳng hàng. Cứ qua hai điểm ta kẻ được một đường thẳng. tính số đường thẳng kẻ được.

1. Quân đội nhà Lê được tổ chức như thế nào ? Tổ chức quân đội thời Lê sơ có gì giống và khác với tổ chức quân đội ở thời Trần? 2. Nội dung bộ luật Hồng Đức? Luật Hồng Đức có điểm nào tiến bộ ? 3. Nhà Lê Sơ đã có những biện pháp gì để khôi phục, phát triển nền kinh tế ? 4. Vẽ sơ đồ các giai cấp, tầng lớp trong xã hội thời Lê sơ?

Lm cho mik bài 1 từ ý 1 đến ý 6 ạ Lưu ý : Ghi đầy đủ các bước giải ra ak

Vẽ cho pé mèo cute đag ngoạm cá đi các pác khỏi full line, màu, nhận tranh cũ,... luật như cũ Ngoài lề: Giời ak, 28/2 ms đi hok lun lại ở nhà học trực tuyến, bùn chán mất T-T

Fill in each blank with a suitable preposition or particle. 17. We made........................that they had forgotten Jane’s birthday, though it was not true. 18. There was tremendous excitement in the streets and the shouting didn’t die....................till after midnight. 19. A new organization is being set.......................for those concerned about the welfare of dolphins. 20. My father is going to go.....................the wall when he finds out that I’ve lost the keys.

Viết đoạn văn ngắn (5 – 7 câu) nói về việc học tập của em trong học kì I vừa qua. Trong đoạn văn có câu ghép mà các vế câu được nối với nhau bởi các quan hệ từ thể hiện mối quan hệ nguyên nhân – kết quả.

làm giúp em đúng sẽ có ctl hay nhất và vote5 seo ạ

Fill in each blank with a suitable preposition or particle. 12. The company’s announced it is laying ...........................over 1,000 workers. 13. The whole village was wiped ....................in the bombing raids. 14. My plans for strarting a restaurant fell....................... 15. After a week on the run, he gave himself .......................to the police. 16. The students were slow to catch...................., but gradually they began to understand.

In the early 1900's, the world was developing at a very rapid pace, and with the growth of industrialization, cities became more crowded. Furthermore, with the invention automobiles, the traffic on the roads increased significantly, so there was a need for a better traffic system. In 1912, an American policeman, Lester Wire, who was concerned with the increasing traffic, came up with the idea of the first electric traffic light. Based on Wire's design, the lights were first installed in Cleveland, Ohio, on August 5, 1914, at the corner of 105th and Euclid Avenue The first electric traffic light had only red and green lights; it did not have a yellow light like modern- day traffic signals. Instead of a yellow light, it had a buzzer sound that was used to indicate that the signal would be changing soon. In the year 1920, a policeman named William Potts in Detroit, Michigan invented the first four-way and three-coloured traffic lights. Apart from red and green, a third colour - amber (or yellow) - was introduced. Detroit became the first city to implement the four-way and three-colored traffic lights. In the 1920's, several automated traffic signals were installed in major cities around the world. The modern traffic light still uses this famous T-shaped model with three different colors. . Answer the questions 1.When was the first electric traffic light invented? _______________________________________________ 2Who invented the first electric traffic light? _______________________________________________ 3.How many colours did the first electric traffic light have? _______________________________________________ 4.Where were the lights first installed? _______________________________________________ 5.What was used instead of yellow light to warn everyone of a signal change? ______________________________________6.When was the yellow light added? ________________________________________________