Giúp mình với mình đg cần !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Cho phương trình m^2x-2=m^2+3m+4x(m là tham số) a,Tìm m để pt có nghiệm x=2. b,Tìm m để pt có nghiệm duy nhất cTìm m để pt vô nghiệm

lập dàn bài cho đề văn:Kể về 1 người bạn mà em yêu mến

xác định lỗi sai trong các câu sau và sửa lại cho đúng a.Ông họa sĩ già nhấp nháy bộ ria mép quen thuộc b.Ngôi nhà kia được xây dựng rất kiên cường

cho S1=1+-3+5+-7+....+17; S2=-2+4+-6+......+-18 tinh:S1+S2

1.The children stopped _________________outside at recess because the weather was awful ( play) 2. Nobody knows how ________________ a cold ( cure) 3. You should _______________ to bed before 10 p.m ( go) 4. Her mother wants her ___________________ too much candy ( not eat) 5. Last night, the children ______________ meat and vegetables for dinner ( have) 6. Remember _________________your teeth after meal. ( brush) 7. I ________________ him playing soccer yesterday.( not see) 8. They ought ___________________ in the river because it is very dangerous ( not swim)

So sánh đời sống của ếch đồng và thằn lằn! Giúp mình với,nhanh nhé mọi người ơi

3m vuoong12 dm vuông= 3,12... 23....=0,23m vuông 5728m vuông=0,5728... 4m vuông 5dm vuông=4,5.... 40dm vuông =0,40.... 2070.....=0,2070 ha 7m vuông 2036....=7,2036m vuông 2435...=24,35 m vuông 412m vuông = 0,0412... 5.....134cm vuông= 5,0134 m vuông 407 cm vuông= 0,0407.... 2m vuông 76...=2,0076m vuông nhớ chỉ điền đơn vị đo nha.

Giúp mình bài 1 phần van ban và bài 2 với . Em rất cần gấp ai nhanh tay em cho 5 sao a

1.Last night, we didn’t watch the film on TV because it was_______ A. bore B. bored C. boring D. boredom 2._________you listen to music last night? A. Were B. Are C. Do D. Did 3.Where __________ yesterday evening? Ạ. were you B. did you go C. did you stay D. all are correct 4.Long was absent ________ class yesterday. A. from B. of C. away D. off 5. What does Mr Tan tell her ________? A. to do B. do C. does D. doing 6. She needs ___________ my temperature. A. to make B. to do C. to take D. to have 7. I need ___________ your height. A. measuring B. measures C. measure D. to measure 8. What was _________ with you? A. problem B. matter C. wrong D. right 9. _____ there a cure for the common cold? A. Is B. Are C. Do D. Does 10. Her cold will _________ for a few days and then disappear. A. lasted B. last C. to last D. lasts 11. The nurse told Hoa ______ to the waiting room. A. to return B. returning C. return D. returns \ 12. My sister is having a pain _______ her head. A. on B. at C. in D. of 13. Everybody ________ the symptom of the common cold. A. knows B. know C. knew D. to know 14. Why _______ he go to school last Monday? – Because he was sick. A. does B. did C. doesn’t D. didn’th

Write the second sentence so that it has the same meaning as the first, using the word(s) in brackets. Do not change the given word in any way. 0. The film was disappointing. (I / disappointed) → I was disappointed at the film. 1. The film made us laugh a lot. (It / amusing) → ____________________________________________________________________ 2. It was a fascinating film. (we / fascinated) → ____________________________________________________________________ 3. The trip made the children excited. (The / exciting) → ____________________________________________________________________ 4. Spiders are frightening. (I / frightened) → ____________________________________________________________________ 5. This song is so boring. (Everyone / bored) → ____________________________________________________________________ 6. His action was really annoying, and his friend was angry. (made / annoyed) →____________________________________________________________________ 7. We were not surprised at the news. (not / surprising) → ____________________________________________________________________