cách reset máy chưa bản quyền trên pc win 10

help với ạ,............................

Giúp em vs ạ , nhanh nhé chỉ 5 phút thôi

. A three-digit number N leaves remainder 3 when divided by 7, remainder 5 when divided by 11 and remainder 8 when divided by 17.find n

Một đoàn tàu gồm 12 toa, mỗi toa dài 15 (m) chuyển động thẳng chậm dần đều vào ga. Một người quan sát đứng bên đường ray thấy toa thứ nhất đi qua mình trong thời gian 1,6(s), toa thứ hai đi qua mình trong thời gian 1,72(s). Chọn gốc tính thời gian là lúc đầu toa thứ nhất đi qua người quan sát. a. Tính gia tốc của đoàn tàu và tốc độ của đoàn tàu lúc toa thứ nhất bắt đầu đi ngang qua người quan sát ? b. Tính thời gian và quãng đường đoàn tàu đi được đến khi dừng hẳn ? c. Tính thời gian toa thứ sáu đi ngang qua người quan sát ? d. Sau một thời gian dừng lại ga, tàu rời ga chuyển động nhanh dần đều. Xét trên 100 thanh ray đầu, ở thanh ray thứ 10 tàu đi mất thời gian 1,2 giây. Hãy tính thời gian tàu đi qua thanh ray thứ 100 và cả 100 thanh ray này. Cho rằng các thanh ray có chiều dài bằng nhau và đặt sát nhau

Vẽ mầm vô cảm+ ngáo ngáo NL: Chuẩn bị học onl trên trường, chưa tỉnh hồn

(o) nội tiếp tam giác abc đều, mn là tiếp tuyến (o) cm chu vi amn không đổi

tim x,y,z biet rang x+y+z+4=2√(x-2)+4 √(y-3) +6 √(z-5)

Mọi người giúp mình làm bài 6 với!! Hướng dẫn chi tiết giúp mình

giúp mik bài đọc vs ạ People have defined ‘skyscraper’ in a number of ways over the years: an ornament on the top of a building, a high-flying bird, a very tall man and a sail at the top of a mast.At the end of the nineteenth century, the word was used to refer to buildings of ten storeys or more.Later, a lift was used to take people up to the higher floors, as in the most famous skyscraper, the Empire State Building.During the middle ages, the people living in the cities of northern Europe began to build great cathedrals.Tall spires were added to make these churches higher and bring them closer to heaven. In the nineteenth century, as cities grew more crowded with people looking for work, the value of land rocketed.New businesses were starting and in order to make room for offices on a small plot of land, it was necessary to build higher.But the problem was that to put up a stone building of such height, the walls on the ground floor would have to be more than two metres thick to hold the weight of the building.So another material was required to make skyscrapers possible. About this time, three buildings were put up that used iron or steel to support great weight with safety.They were the Crystal Palace in London, the Eiffel Tower in Paris and the Brooklyn Bridge in New York.From then on, architects started to experiment with buildings that had steel frames and they have made huge progress.Today, the tallest skyscrapers are a hundred storeys or more, compared to the first ten storeys skyscrapers, which seem tiny. Question 31: What is the passage mainly about? A. Why skyscrapers were needed. B. The most famous skyscrapers in the world today. C. The people who designed skyscrapers. D. Problems during construction of skyscrapers. Question 32: In the middle ages, people built tall churches because ________ . A. they were more beautiful B. they felt like approaching God C. they took in more people D. they started to build great cathedrals Question 33: The word "rocketed" in paragraph 2 mostly means ________ . A. rose B. dropped C. fluctuated D. drew Question 34: The word "they" in the last paragraph refers to ________ . A. buildings B. architects C. frames D. skyscrapers Question 35: According to the passage, which of the following is NOT true? A. Taller buildings were necessary because land was expensive. B. The problem with making a tall building with stone was its weight. C. Skyscrapers were needed as houses for the poor. D. In the past, the word ‘skyscraper’ had different meanings.