tìm phân số tối giản A=3n+2/2n+3

một bảng chỉ đường hình tròn có đường kính 50cm. a.Tính diện tích bảng chỉ đường bằng m2 b.Người ta sơn 2 mặt tấm bảng đó mỗi m2 hết 7 nghìn đồng .Hỏi sơn tấm bảng đó hết bao nhiêu tiền

$\text{Kiếm điểm part 'n' :) ,độ khó 2%/100% :))}$ $\text{Tìm No của phương trình sau :}$ $\text{(x²+x+2)³-(x+1)³= $x^{6}$ +1}$

vì sao pháp chọn đà nẵng là nơi tấn công đầu tiên , trả lời theo những gì các bạn học trên lớp chứ k chép mạng nhé

Chỉ dùng Cuo hãy phân biệt rượu etylic và axit axetic . Viết pt hoá học minh hoạ

trên cùng một nửa mặt phẳng có bờ chứa tia Ox , vẽ hai tia Oy và Oz sao cho xOy= 60 độ , góc xOz =120 độ a) trong 3 tia Ox , Oy , Oz tia nào nằm giữa 2 tia còn lại? vì sao b) so sánh yOz với xOy c) vẽ tia Ot LÀ TIA ĐỐI CỦA TIA Ox, cho biết hình vẽ có bao nhiêu góc. nêu tên các góc?

IX. Choose the letter A, B, C or D to complete the sentences with given words Question 1: I/ make/ friends/ foreigner/ in/ chat room. A. I made friends with a foreigner in a chat room. B. I am making friends with foreigner in a chat room. C. I was made friends with a foreigner in a chat room. D. I have made friends with foreigner in a chat room. Question 2: Cultural differences/ can/ seen/ in/ conversation/ between/ people/ different countries. A. Cultural differences can seen in conversation between people to different countries. B. Cultural differences can seen in conversation between people on different countries. C. Cultural differences can be seen in conversation between people from different countries. D. Cultural differences can be seen in conversation between people for different countries. Question 3: Learn/ English/ help/ us/ get over/ the/ language barriers A. Learn English helps us get over the language barriers. B. Learning English helps us get over the language barriers. C. To Learn English helps us get over the language barriers. D. Learnt English helps us get over the language barriers Question 4: Have/ you/ ever/ attend/ video conference A. Have you ever attended a video conference? B. Have you ever attending a video conference? C. Have you ever attend a video conference? D. Have you ever attends a video conference? Question 5: Thanks/ social networks, we/ can/ connect/ each other/ easily. A. Thanks social networks, we can connect to each other easily. B. Thanks social networks, we can to connect to each other easily. C. Thanks to social networks, we can to connect to each other easily. D. Thanks to social networks, we can connect to each other easily Rearrange the sentences to make meaningful sentences Question 6: My/ cellphone/ parents/ me/ buy/ promised/ a/ to/ I’m/ when/ 18. A. My parents promised to buy me a cellphone when I’m 18. B. My parents promised buy to me a cellphone when I’m 18. C. My parents promised when to buy me a cellphone I’m 18. D. My parents promised to buy a cellphone me when I’m 18. Question 7: My/ landline/ to/ grandfather/ smart phones/ prefers. A. My grandfather prefers to landlines smart phones. B. My grandfather to prefers landlines smart phones. C. My grandfather prefers landlines to smart phones. D. My grandfather prefers smart landlines to phones. Question 8: Non-verbal/ called/ languages/ are/ languages/ sometimes/ body. A. Non-verbal languages are sometimes called body languages.< B. Non-verbal languages are called sometimes body languages. C. Non-verbal are languages sometimes called body languages. D. Non-verbal are languages called sometimes body languages. Question 9: If/ I/ someone/ send/ will/ her/ I/ a/ love/ send/ snail mail. A. If I send someone, I will love her a snail mail. B. If I send her, I will love someone a snail mail. C. If I love her, I will send someone a snail mail. D. If I love someone, I will send her a snail mail Question 10: People/ have/ telepathy/ believe/ twins/ that/ often. A. People have that twins often believe telepathy. B. People believe that twins often have telepathy. C. People twins believe that often have telepathy. D. People believe twins often that have telepathy Rewrite sentences without changing the meaning Question 11: Interacting with friends through the internet is fun. A. It’s fun to interact with friends through the internet. B. Interacting with friends through the internet is boring. C. To interact with friends through the internet no fun. D. There is fun interacting with friends through the internet. Question 12:It’s required that you have to follow netiquettes in this chat room. A. You must follow netiquettes in this chat room. B. You need follow netiquettes in this chat room. C. You can follow netiquettes in this chat room. D. You should follow netiquettes in this chat room Question 13:To communicate face-to-face is more convenient than to interact online. A. It’s more convenient to interact online. B. It’s more convenient to communicate face-to-face. C. It’s less convenient to interact online. D. It’s less convenient to communicate face-to-face. Question 14: The message board is so informative that I read it all day. A. The message board is too informative that I read it all day. B. The message board is informative enough that I read it all day. C. It is so an informative message board that I read it all day. D. It is such an informative message board that I read it all day. Question 15: If I had a smart phone, I would be able to read emails. A. I could read emails because I don’t have a smart phone. B. I couldn’t read emails because I didn’t have a smart phone. C. I couldn’t read emails because I don’t have a smart phone. D. I could read emails because I have a smart phone. MÌNH SẼ VOTE 5SAO CHO CÂU TRẢ LỜI HAY VÀ NHANH NHẤT Ạ

tìm độ dài 3 cạnh có chu vi bằn 13 cm.biết độ dài 3 đường cao tương ứng là :2;3;4 cm

Chụp hộ mik dàn ý mà cô giáo đã dạy : đoạn văn 200 chữ về lòng hiếu thảo

Cho biết vùng biển VN có những loại tài nguyên khoáng sản nào? Các loại tài nguyên đó cơ sở cho các ngành kinh tế nào? Giúp mình với ạ