làm giúp mình với?????????????????????????????

1. Tìm x ∈ Q, biết: a) (x+1).(x+2) < 0 b) (x-2).(x+ $\frac{2}{3}$ ) > 0 Không copy nhá

giải thích tại sao lại chọn câu đấy

nói về môn học yêu thik ! khoảng 7 -10 dòng

Mn híup mik làm bài này với nha

Vẽ đậu mầm buồn Bo cần một người đàn ông mạnh mẽ để tâm sự :(

V. Write the opposite. 1. ​turn up (the radio)​___ 2​. put on (a coat)​___ 3​. forget (a name)​___ 4​. get better​___ 5​. stand up​___ VI. 1​. When I saw her she was walking ____ the lake. ​across through towards 2​. Last night we ___ a cake for his birthday. ​made did paid 3​. She always ___ a handbag. ​wears puts carries 4​. Go ___ the supermarket and the bank is on your left. ​over past along 5. ​I ___broke my friend’s camera. ​luckily accidentally immediately 6​. He looks ___his father. ​like as same 7​. I looked ___ the new words in the dictionary. ​down through up 8​. A​: I love computer games. ​B​: ____ do I! ​So Also Neither 9​. I’m looking ___Jan’s baby while she’s out. ​forward after for 10​. I gave ____ smoking two years ago. ​down off up 11​. I am working very hard because I want to ____ at 50 and go travelling. ​retire separate leave 12​. Did you know text-messaging was ____ by a Finnish company? ​discovered invented designed 13​. I went to Morocco in August and it was ___ hot. In fact it was boiling. ​a bit quite incredibly 14​. The lion looked asleep but it ___ jumped up and ran away. ​luckily accidentally suddenly 15​. The little girl said she wanted to get married and ___ ten children. ​have get become VII. Complete the sentences with one word. 1​. The student ___ me he had been in the school for a month. 2​. A: ​Shall we go out for dinner? ​B​: That’s OK. I ___ mind cooking. 3. ​I’m looking ___ Ben. Have you seen him? 4​. I get on very __ with Jackie. She’s like a sister to me. 5​. I do the same thing every day. It is so ___. I want to do something different and more exciting. 6​. We walked ___ the bridge to see the ducks in the river. 7​. I cooked the meal and my wife ____ the washing up. 8​. Please don’t ___ a noise. The baby’s sleeping. 9​. A​: What are you doing here? ​B​: I’m waiting ___ a friend. 10​. The boy ___ that he wanted to dance with me. VIII. Underline the stressed syllable. 1​. newspaper 2​. kangaroo 3​. invented 4. ​divorced 5. ​salary 6​. elephant 7​. towards 8​. dolphin 9. ​imagination 10​. directed IX. Match the words with the same sound. hope get tiger forget turn divorced discover wear enjoy finish 1​. promise​___ 2​. dangerous​___ 3​. across​___ 4​. mosquito​___ 5​. whale​___ 6​. elephant​____ 7​. throw​__ 8​. earn​__ 9​. pretend​____ 10​. try​___

Nhiệt phân một lượng MgCO3 sau một thời gian thu được chất rắn A và khí B. Hấp thu hết khí B vào dd NaOH thu được dd C vừa tác dụng với dd BaCl2 vừa tác dụng với dd NaOH. Hoà tan chất rắn A vào dd HCl dư thu được khí B và dd D. Cô cạn dd D thu được muối khan E. Điện phân nóng chảy E thu được kim loại M. Xác định thành phần A, B, C, D, E, M. Viết phương trình phản ứng.

Làm nhanh hộ mk vs :3 💚💚💚💚💚💚

1859 × 3679= nhanh nha các bạn