Tính góc y cái chỗ góc dưới bên phải là góc C = 50 độ nhé !

Kể lại 1 kỉ niệm đáng nhớ của em với bạn bè ít nhất 5 trang giấy vở ai giúp mình ik mai kt r hứa vote 5 sao

cho trả lời vs các pháp tuyến 1 góc 40 độ a/ vẽ tia tới , tia phản xạ b/hỏi tia tới , góc phản xạ bằng bao nhiu

Một muối sunfat của một kim loại chưa rõ hóa trị CT thành phần oxi chiếm 48 % về KL . Hãy xác định CT của muối sunfat trên

thinh met lat b biel ghi do cim thank one A. brong du'ng fung hs an dau Bon thuck tinh fua alo thanh din am inhae la eac do trudy trong A. bhons chinh ráe Chi cho minh cach tra loi chinh xac , cam on cho 5 sao

X-1/2=y-2/3=z-3/4 và x-2y+3z=14

Giới thiệu về tác giả (trần nhân tông) của bài buổi chiều đứng ở phủ thiên trường trông ra. Ngắn gọn thui, ko cần nhìu, nhìu quá ghi ko đc

Viết đoạn văn 10-12 câu nội dung tự do trong đó có sự dụng 10 dấu câu

Exercise 4. Rewrite the sentences using the connector given. 1. The car is very cheap, but we still cannot afford it. => Although ………………………………………………………… 2. Betty isn't very tall. However, she can run fast. => ………………………………though………………………… 3. He doesn't have much money, but he wants to buy a new car. => Even although ………………………………………………………… 4. He's a hard worker. However, he can never save up enough for a house. => Although ………………………………………………………… 5. There was a lot of food at the party. I still dislike it. => ………………………………though………………………… 6. Although they were well-educated, they were boring. => ………………………………, but………………………… 7. I knew it though he didn't tell me why he'd been late. => ………………………………. ; however, ………………………… 8. She was unattractive. However, she still had many friends. => ………………………………even though………………………… 9. Even though they had lived in London for years, they always spoke German. => ………………………………, but………………………… 10. Although she is a girl, she plays football as skillfully as any boys. => ………………………………. .However, ………………………………….. Exercise 5. Fill in the blanks with one of the words from A ) , B ) , C ) , or D ) . 1. It looked dark and heavy __ it was going to rain. A) although B) unless C) as if D) whereas 2. __ I get your call, I will leave. A) As soon as B) As though C) By the time D) Now that 3. __ he had read the instructions several times, he knew what to do. A) Whereas B) After C) Until D) While 4. __ he cannot afford a car, he rides a bicycle. A) Unless B) Whereas C) Though D) Because 5. __ the cities do not provide better and cheaper mass transport, the traffic problem will get worse. A) So that B) Even though C) If D) Before 6. __ you go to Canada, you should visit Toronto. A) When B) As C) Since D) Unless 7. __ riding a bicycle is a good leg exercise, it does not use up a lot of calories. A) As B) Although C) Because D) So that 8. She turned off the record player __ she could study. A) now that B) even if C) so that D) in case Giúp mk ex4 thôi nha

4575m = ......km......m 37054mm=......m.....mm 5687 kg = ......tấn ......kg 4087g=....kg...g 6434dam²=.......m²....dm² 7 tạ + 26kg=......g 5 tấn ÷2 tạ = ...tạ 7dm²+42mm²=....mm² 4hm²-25dam²=........dam²