rút gọn các bt sau: 1. √( √11+3) ² 2. √ 4-2 √3 3. √(3- √2) ² 4. √7+4 √3 5. √(5+ √7) ² - √8-2 √7

Cho a1 g Na tác dụng với bg nước được dd xút có nồng độ C%. Cho a2 g Na2O tác dụng với bg nước thu được dd xút có cùng nồng độ C% a. Xác định mối quan hệ giữa a1, a2 và b b. Cho a1 = 4,6; b = 20. Xác định a2 và nồng độ C%.

V. Read the story. Choose a word from the box. Write the correct word next to numbers 1-6. Jane loves reading. Last Tuesday, her father ...gave...her a new book to read. It was about a (1) ………who sailed round the world in a very small boat. Her name was Mary Banks and she was only 22. It was a very exciting story. Mary saw (2) ...................and sharks in the sea. She was often (3) .....................but she was never afraid. When Mary came home, lots of people wanted to read about her. Jane read a story about her on the back (4) ....................of one of her comics! Mary was often on television too. Jane loved the book. “Can we (5) ......................a boat, Dad?” she asked. “I want to sail a boat round the world too!” Jane’s father looked at her and smiled. “I think that’s a great idea, Jane. But first you must learn to (6) ..................!” }} }}

Viết calli tên nhóm tui nha:Block Magic Yc:tradi/digi,có đổ bóng,tone xanh dương+tím, huyền ảo vào:>>> Có tâm,Xấu=bc *Đặt 3 câu ròi ko bt hoa bớt vắng hơn chưa:>>>

vẽ đậu mầm cute nka >3 / ngạc nhiên NL : Cj sim là hủ nữ mn ạ

Bạn nào có thể giúp mình không ặ, mình cần gấp 🤧

Viết lại câu 1. You were wrong to keep these facts from me have You .............................................................. these facts from me. 2. They are thinking of employing extra staff this summer taking They are....................................................... extra staff this summer. 3. We'd better leave; it's getting dark time It's ................................................................; it's getting dark. 4. I thought that man was your father for I.................................................................... your father 5. She regrets ever taking in lodgers wishes She......................................................... in lodgers 6. Has anybody told you about the problem? aware Are ................................................................... the problem ? 7. I changed my plans because you asked me to would If you hadn't asked me to, .................................. my plans 8. His ankle was twisted during the match got He........................................................... during the match 9. People believe she is planning to go freelance believed She .................................................. to go freelance

Giải d,e,f,g ///////////////////////

vẽ chibi :3 có tâm xíu nha digi or tradi đều dcj @Sâu

Trắc nghiệm câu này vs ạ 30 điểm nhanh