cho Δabc vuông cân tại a,bc=2cm.ở phía ngoài của Δabc ,vẽ Δace vuông cân tại e. a)c/m aecb là hình thanh vuông b) tính các góc và các cạnh của hình thang aecb iu mnggggggggg

a/ Tìm bậc của đơn thức -2x2y3 b/ Tìm các đơn thức đồng dạng trong các đơn thức sau: 5xy3 ; 5x2y3 ; -4x3y2 ; 11 x2y3

I. Choose the best answer to complete the sentences. 1. In La Tomatina,people get to throw tomatoes at (together/ once/ themselves/ each other) 2. A lot of dancers go to Rio de Jaineiro to (follow/ take / attend / play) the Rio Carnival. 3. The biggest prize of the competition is given (to/ for/ of/ with) the best player. 4. Please tell him to (turn on / turn up / turn over / turn off) at the meeting in time. He is always late. 5. The Imperial Academy was (use to educate/ used of educating/ used to educating/ used to educate) young men for the country. 6. We didn't win(although / because / in spite of / despite) we played better. 7. He forgot to give a (signal/ sign/ light/ hand) before he turned left and got a ticket. 8. In order to save energy, don't forget to (turn / turn on / turn off / turn of)the lights before you leave. 9. I found the book so (gripping/ boring/ tiring/ shocking) that I couldn’t put it down. 10. The (festive/ festival/ air/ tradition) atmosphere is felt around all the villages

Giải thích và chọn đáp án giúp mình vs ạ cảm ơn

mong mn giúp mình bài này với ạ tìm nghiệm nguyên pt: 3x^2+4y^2+12x+3y+5=0

LM JUP E VS E camon ac ạ iu moahhh hí Bài 11. Chuyển các câu sau sang thể bị động 1. Everyone told us that you were the winner of the City Olympic Prize in the competition last year. 2. Staff reported that the orders were canceled by negative comments. 3. Someone inform me that our manager is going to move to New York. 4. The supervisor announced that the workshop was delayed about 2 hours because of mechanical problems. 5. My father discovered that this plant was grown in India 6. The director promise that the audition will start on time. 7. John recommends that everyone should travel in France this season. 8. I believed my brother would pass this college entrance exam. 9. People have persuaded me that they will join with me to the party. 10. The class president notifies all the members that they will have to study harder next term

Các bạn giúp mình câu 3 và câu 4 của Bài 5 với ạ, mình cảm ơn. Mình tiện thể để luôn phần bài làm câu 1 và 2 của mình luôn cho bạn nào cần đỡ phải làm 2 câu đầu.

Gải pt a) `x^2` - `6xy` + `16x^2` - `2y` + `1` = `0`

Giải hộ mình câu 4 nhé Làm cả càng tốt ạ

Giúp mình với mik cần gấp lắm Ai làm nhanh và đúng vote 5 nha