Cho hàm số y= (x^3/3)-mx^2-3mx+4. Để hàm số đạt 3 cực trị tại x(1);x(2). Để thỏa mãn: x(1)^2 +2mx(2) +9m m^2 ______________________+______________________ m^2 x(2)^2 +2mx(1)+9m Thì m thuộc khoảng nào

84. Would you mind ....................... your address on the back of this check? A) write B) to write C) writing D) written 85. I don’t enjoy .................... to the dentist’s. A) go B) to go C) going D) goes 86. I don’t regret .......................... her what I thought even if it upset her. A) to tell B) told C) tell D) telling 87. Remember ........................ Katie my greeting card when you see him. A) give B) to give C) giving D) gave 88. My friends has given up ...................... and prefers ..................... pork. A) drink/ eat B) to drink/ eating C) drinking/ eating D) drank/ eat 89. I had to ask the boys .......................... ................................. billiards all the day. A) to stop/ playing B) to stop/ to play C) stopping/ playing D) stops/ to play 90. My teacher promised ................... me .......................... for my next examination. A) help/ prepare B) to help/ prepare C) helping/ to prepare D) helped/ preparing 91. I would like him ......................... ............................ more English lessons. A) to start/ take B) to start/ taking C) starting/ take D) starting/ taking 92. I hate .......................... ................. aloud without ....................... the new words. A) practise/ reading/ learn B) to practise/ to read/ to learn C) to practise/ reading/ learning D) practises/ reading/ to learn 93. She doesn’t want you .......................... to her arriving. A) mention B) to mention C) mentioning D) mentions 94. Did you manage .......................... ..................... these parcels alone? A) finishing/ to pack B) finishing/ packing C) to finish/ to pack D) to finish/ packing 95. Can someone .................... me how ............. into film from the camera’s pictures? A) show/ change B) to show/ to change C) showing/ change D) show/ to change 96. I’ll try ........................................... such a foolish thing again. A) not to cause B) to not cause C) not causing D) to cause not 97. Susan has decided ......................... her friends ...................... as she pleases. A) allow/ do B) to allow/ to do C) deciding/ do D) deciding/ doing 98. Everybody would like ................................ to a higher position. A) promote B) promotes C) promoting D) to promote 99. He climbed over the wall without ............................ by anybody. A) seeing B) to see C) being seen D) to be seen 100. I remember ................................ a toy car on my fifth birthday. A) to be given B) being given C) to give D) giving 101. They always try .................. ................ the bridge as they promised before. A) to postpone/ to build B) postpone/ build C) to postpone/ building D) postponing/ built 102. I can’t help .......................... for her acceptance. A) to wait B) waiting C) wait D) waited 103. Don’t be afraid of .......................... that animal. A) touch B) touches C) touching D) to touch 104. I am accustomed to ......................... on my own. A) living B) to live C) live D) lives 105. They are looking forward to ...................... your news. A) hear B) to hear C) hearing D) heard 106. American women have got used to .................independently recently. A) live B) to live C) living D) lives 107. We won’t let you............... what we are going to do with him. A) know B) to know C) knowing D) known

Cho Fe phản ứng với dung dịch H2SO4 đặc, nóng thu được khí SO2 duy nhất và dung dịch chứa 8,28 gam muối. Biết số mol Fe phản ứng bằng 37,5% số mol H2SO4 phản ứng. Tính khối lượng Fe đã phản ứng. KHÔNG CHÉP MẠNG, GẤP

Mọi người ơi giúp mình với ạ. Mình đang cần gấp 😊

Một thuyền máy đi xuôi dòng từ A đến B rồi ngược dòng từ B về A hết 2h30' a) Tính khoảng cách AB biết vận tốc xuôi dòng là 18km/h vận tốc ngược dòng là 12km/h b) Tính vận tốc của dòng nước đối với bờ sông c) Trước khi thuyền khởi hàng 30' có một chiếc bè trôi từ A. Tìm thời điểm và vị trí những lần thuyền gặp bè.

Để phản ứng hết a gam kim loại M cần dùng 1,25a mol H2SO4 sinh ra khí X duy nhất. Hòa tan hết 19,2 gam kim loại M vào dung dịch H2SO4 thu được 4,48 lít khí X duy nhất (đktc). Xác định kim loại M. KHÔNG CHÉP MẠNG, CẦN GẤP

don't ride ......so fast A car B matches C bike D stairs

Giúp với ạ :3 Vote 5s+ camon nho

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MÌNH đang cần gấp ạ I.Fill in each blank with the correct adjective from the box. Slow vast quite peaceful nomadic inconvenient colourful safe m hard brave 1. Nick looks very funny – today he is wearing a_______________ shirt. 2. It will be very_________ for me to have no bicycle. 3. Last Sunday our class visited a_______ village near our school. 4 The dentist ask me to try to be________________ because it might hurt me a little. 5. People have cut down trees in a/an______________ area of forest this year. 6. On the Gobi Highland we can find several__________ tribes living on raising cattle. 8. Is it________ to drink water from this home village. 9. After he retired, he leads a________ life in his home village. 10. Many years ago my village was very poor and the living conditions were so __________.