giải hệ pt x - 3y =6 và -2x +6y = -32 b,x √2 - y √3 =1 và x + y √3 = √2 c, x √2 - 3y =1 và 2x + y √2 = -2 d, x √3 - (1 + √3)y = 1 và (1- √3)x + y √2 = 1 e, 5x √3 + y =2 √2 và x √6 - y √2 = 2 giúp mình với ạ .mình vote cho 5 sao

#CẦN_GẤP Câu Lệnh While do đúng là While <điều kiện> do; <câu lệnh>; While <điều kiện> <câu lệnh> do; While <điều kiện> do <câu lệnh>; While <câu lệnh> do <điều kiện> Vòng lặp While ....do là vòng lặp Biết trước số lần lặp chưa biết trước số lần lặp Biết trước số lần lặp nhưng giới hạn nhỏ hơn 100 Biết trước số lần lặp nhưng giới hạn lớn hơn 100 Câu lệnh sau đây đúng hay sai While n<=0 do; write('nhập lai n'); readln(n); Đúng Sai sau do không có dấu chấm phẩy sai do thiếu begin end. tất cà đều đúng Đoạn câu lệnh sau, Mỗi lần lặp giá trị của biến i trong câu lệnh sau thay đổi như thế nào ? While i<=10 do i:=i+3 tăng 1 tăng 2 tăng 3 tăng 4

I. Make question for the underlined part in each sentence. There is an example at the beginning . 1. My favourite festival is Halloween. ______________________________________________________________________ 2. People dress up and have a party on the day. ______________________________________________________________________ 3. The Mid-Autumn festival takes place mainly in the streets. ______________________________________________________________________ 4. The party didn’t finish until mid-night. ______________________________________________________________________ 5. Thousands of people attend the Tomato Fight Festival in Bunol every year. ______________________________________________________________________ 6. We love New Year Holiday because we can enjoy lots of good foods then. ______________________________________________________________________ 7. Festivals such as Mid-Autumn and Halloween are mainly for young children. ______________________________________________________________________ 8. The Flower Festival is celebrated every year. ______________________________________________________________________ 9. We always have turkey on Thanksgiving. ______________________________________________________________________ 10. Peter went to Da Nang last month with his parents. ______________________________________________________________________ 11. They participated in La Tomatina in 2013. ______________________________________________________________________ 12. These are my brother's pictures. ______________________________________________________________________ 13. The Elephant Race Festival will be held in Don Village next year. ______________________________________________________________________ 14. People organize this festival to pray for better crops. ______________________________________________________________________ 15. We decided the winners by tasting the dishes they cooked. ______________________________________________________________________ 16. The festival lasts only one hour and a half. giúp mình vs mình đang cần

một oto đang chuyển động vói vận tốc 55m/s. Tính khối lượng của oto khi biết động lương của oto là 275000 kg.m/s

.viết lại câu 1.have / you / would / what / for dinner / like / to / tonight? 2. either / can't / Hoa / smell / can't / durians / aunt / the / and. 3. must / it / good / you / spinach / very / but / wash / for / is you / carefully 4. ate / last / I / spinach / my / Mom / night / didn't / but / and / some / Dad. 5. gave / the / Ba / some / doctor / make / him to / medicine / feel / better. 1.What would you like to have for dinner tonight? 2.Hoa can’t smell durians and the aunt can’t, either. 3.Spinach is very good for you but you must wash it carefully. 4.Last night, Dad and my Mom ate some spinach but I didn’t. 5.The doctor gave Ba some medicine to make him feel better.

giúp mik giải bài 18 và 19 với ạ

phân tích đoạn 1 bình ngô đại cáo của nguyễn trãi không được chép bài trên mạng

cho `a,b,c,d>0` thoả mãn `1/(1+a)+1/(1+b)+1/(1+c)+1/(1+d)>=3` `CMR:abcd<=1/81`

Đồng bạch là một loại hợp kim của niken, kẽm và đồng vói khối lượng của chúng lần lượt tỉ lệ với 3 ; 4 và 13. Hỏi cần bao nhiêu kilogam niken, kẽm và đồng để sản xuất 150kg đồng bạch?

man among the guests is a basketball player. The tallest Taller The taller Tallest Actually, today I feel _________than I did yesterday. bad worse worst the worst This is _________ film I have ever seen. good best better the best We are late because we got stuck in _________ traffic jam. an the a no article There isn’t _________ airport near where I live. _________nearest airport is 70 miles away. an - A an - The the - A the - The What time _________ on television? is the news are the news is news are news I lay down on __________ ground and looked up at _________ sky a - a a - the the - a the - the Choose the word or phrase that needs correction: ***I visited Mexico and United States last year. visited Mexico United States last year Choose the word or phrase that needs correction: *** China has a larger population as most other major industrial countries. other has countries as Choose the word or phrase that needs correction: ***Both Jim and Jack are my friends, but I like Jack best. but and both best Indicate the word whose underlined part differs from the other three in pronunciation. occasion ancestor hockey originate Indicate the word whose underlined part differs from the other three in pronunciation. bridegroom assignment reliance delicious Indicate the word whose underlined part differs from the other three in pronunciation. underground usually curious refuse Indicate the word whose underlined part differs from the other three in pronunciation. ancestor complicated reception decide Choose the word which has a different stress pattern from the others. sacrifice nonetheless attitude probably