tìm x nguyên thỏa mãn |x+1|+|x-2|+|x+7|= 5x - 10 giải chi tiêts nha

giúp mình với $\sqrt{x-2}$ - $\sqrt{x+1}$ = $\sqrt{2x-1}$ - $\sqrt{x+3}$

giúp em câu này với ạ 4. Cho 1,1g hỗn hợp bột sắt và bột nhôm tác dụng vừa đủ với 1,28g bột lưu huỳnh. a. Viết PTHH của phản ứng xảy ra. b. Tính tỉ lệ % của sắt và nhôm trong hỗn hợp ban đầu theo lượng chất và khối lượng chất.

Cái mà theo pthh : no2pu ý Cho e hỏi pu là j

Mọi người ơi giúp mình bài này với ! Mình cảm ơn nhiều ạ^^

Hãy miêu tả hình ảnh người mẹ của em trong một hoạt động mà mẹ yêu thích. ( soạn báo cáo )

1 / 2 I – Read the answers and complete the questions in the following conversation. 1. Where .......................................................................? I live at 215 Le Loi Street. 2. What time ..................................................................? I get up at six o’clock every morning. 3. What .................................................................. then? Then, I brush my teeth and do morning exercise until haft past six. 4. When ........................................................................? I usually leave for school at quarter to seven. 5. How .........................................................................? I walk to school. 6. Where ..................................... ? At home or at school? I usually have breakfast at home, but sometimes at the school canteen. 7. How long ...................................................................? School last from haft past seven to eleven o’clock. 8. How many lessons.............................. in the morning? I usually have three lessons in the morning. 9. How often .................................................................? I have English lesson three times a week. 10. Which subject ..................................................best ? I must say it’s Math. I like it best of all the subjects. II - Supply the correct form of the verbs in brackets to complete the sentences. 1. We (be) in Grade 8 this year. ...................................................................................... 2. Hoa and Lan (busy) some books yesterday. ...................................................................................... 3. Our friends (watch) a game on T.V at the moment. ...................................................................................... 4. Ba’s teacher (give) him a lot of homework last week. ...................................................................................... 5. Our class (go) to the zoo next week. ...................................................................................... 6. Their grandmother (tell) them a lot of stories last year. ...................................................................................... 7. Look! Lan (wear) a new dress. ...................................................................................... 8. We (visit) our grandparents this weekend. ...................................................................................... 9. All the students in our school (receive) new books yesterday. ...................................................................................... 10. Listen! The birds (sing) beautifully.

căn bậc hai của x cộng ba bằng 5 trừ căn bậc hai x trừ 2

1, An: " I' ve passed my exam. " - Tuan:"................" A. Good luck B, It's nice of you to say so C,That's a good idea D, Congratulations 2, Have they found a Covid-19 vaccine.................? A. Alreaady B. yet C. since D. for 3, This house is....................of the three A.old B.older C. the oldest D.oldest 4, I wish I............Hoa Binh city again some day. A. visit B. will visit C. visited D. could visit 5,Why don't we..................some where for a dink? A. go B. went C.going D.goes 6,The weather was bad,................we had to cancel our picnic. A. and B.but C.because D.so 7,The doctor advised me ........................jogging every moning . A. went B. go C. to go D. going 8, Phong...................collecting stamp 5 years ago A.stars B. started C. has started D. is starting 9,Susan suggeted............out for dinner A. eat B.eats C. to eat D. eating 10, When we....................... to visit her last night, she .............. television. A. come/ is watching B.come/ was watching C. came/ was watching C. came/ watched 11, We won't go out......................................it stop raining A.if B.unless C. when D.as 12. Kangatoos, ................................have long tail, live in Australia. A.which B.that C. whom D. who 13, The examination will be held....................July, 2020. A.at B.on C. in D. to 14. "Thank you for your help, Judy."-"......................" A.With all my heart B. It's my pleasure C.Never mind D. Same to you 15, His house looks very large and beautiful. It is ...................house. A. a seven-room B. a seven-room C. seven room D. seven rooms.

Ai giúp mình với nha hứa vote 5 seo <3