Đáp án:
Giải thích các bước giải:
bài 1; tính nhanh a,66.25+5.66+66.14+33.66 b,12.35+35.182-35.94 c,35.23+35.41+64.65 d,29.87-29.23+64.71 e, 48.19+48.115+134.52
giúp e câu 2 với ạ. giải chi tiết giúp e với
Các bn giải giúp mk vs ạ Cảm ơn nhìu
$\frac{x^2+2x+1}{x^2+2x+2}$ + $\frac{x^2+2x+2}{x^2+2x+3}$ = $\frac{7}{6}$
viet duoi dang cong thuc cac tinh chat cua phep cong va phep nhan cac so nguyen
Bài 2 viết các số thập phân A 584g=...... Kg B 36cm2=....dm2 C 78m8dm=....m D 2 tấn 38 kg= ....tấn
Câu 5. Đốt cháy 18,6g Photpho trong không khí tạo thành điphotpho pentaoxit (P2O5). a. Viết phương trình hóa học. b. Tính thể tích khí oxi cần dùng ở (đktc)? c. Tính thể tích không khí, biết thể tích khí oxi chiếm 20% thể tích không khí? d. Tính khối lượng chất tạo thành? (Cho: O = 16, P = 31, Cl = 35.5, K = 39)
Correct the verbs from to complete the sentences. 1. If you (go) .............. away, please write to me. 2. If he (eat) ............ another cake, he will be sick. 3. I (not do) ........... that if I (be) ..................... you 4. If he (take) ............ my advice, everything can go well 5. He never does homework. If he (do) ....................... his homework, he (not worry) .................... about his exam 6. What you (do) ................. if she (be) refuses your invitation? 7. If today (be) ......................... Sunday, we (go) ................to the beach 8. Unless they ( pass) ................ their examinations, they would join the army 9. You (be)...................... ill if you drink that water 10. If Tom (go) ................. to bed earlier, he would not be so tired 11. If it's raining heavily, we (not go) .................. for a donkey rice 12. If he (try) ...................................... hard , he'll pass the examination 13. I could understand the French teacher if she (speak) ................. more slowly. 14. If I (finish) ............. the work in time, I (go) .................. to the football game. 15. If you (see) ................... Mary today, please (ask) ................... her to call me.
cho hình chữ nhật ABCD có AB bằng 90cm , chiều rộng bằng 2/3 chiều dài . trên BC lấy điểm M bất kì , nối 2 đoạn MA và MD ta được tam giác ADM . tính điện tích tam giác đó
Use the correct tense or form of the verb given in each sentences. (1.5 pts) 25. My pen pal was really ____________________ by the beauty of Ha Long Bay. (impress) 26. Both competitors are ____________________ strong and fast. (surprise) 27. The company has made a new motorbike having very low fuel ____________________. (consume) 28. A large number of car accidents are caused by fast and ____________________ driving. (care) 29. Could You send me details of courses for _____________ who have never learnt English before. (begin) 30. Ba's family and Liz had a very ____________________ day in the countryside last weekend. (enjoy) Rearrange the groups of words in a correct order to make complete sentences (0.5 pt) 31. have lost their lives/ Many people around the world/ natural disasters/ and homes because of/ 32. The survival of/ depends on each and/ the natural world/ every one of us/ Rewrite each of the following sentences in another way so that it means almost the same as the sentence printed before it. (2.0 pts) 33. He can't drive because he's very young He is not _______________________________________________________________________ 34. City life is not as peaceful as country life. Country ________________________________________________________________________ 35. It's not safe for kids to go hunting Pokemon on the street Going hunting ________________________________________________________________ 36. The boy hasn't visited his grandparents for two months. The boy last __________________________________________________________________ Choose the word whose underlined part is pronounced differently from that of the others. 37. A. tripB. riverC. lifeD. city 38. A. restedB. hikedC. dressedD. advanced Choose the word that has the different stress. 39. A. cityB. poem C. advice D. chidren 40. A. uniform B. assistantC. collectionD. professor
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