Đáp án:
Giải thích các bước giải:
TỬ SỐ
3/5+3/7-3/11=3.(1/5+1/7-1/11)
MẪU SỐ
4/5+4/7-4/11=4.(1/5+1/7-1/11)
M=3.(1/5+1/7-1/11)/4.(1/5+1/7-1/11)
M=3/4
1. She said to him “I am going to leave soon”. =>She told 2. They haven’t visited their hometown for ten years. =>The last time 3. It was too cold for children to go to school. =>It was not =>It was such 4. You are unfit because you don’t do enough execise. =>If 5. We have to water these young trees during the dry season. =>These young trees 6. It was such good milk that we couldn’t stop drinking it. =>The milk was 7. This kitchen is different from mine. =>This kitchen is not 8. He’s the best player our team has ever had. =>Our team has never 9. Mrs Scott is proud of her cooking. =>Mrs Scott takes 10. It’s my opinion that you should take more exercise. =>If I 11. I haven’t done any gardening for three months. =>It has 12. Although her leg hurt, Jill finished the race =>In spite of a 13. There was too little time to go back home by bike. =>There was not 14. To do the same things every day gives me no pleasure. =>I don’t enjoy 15. Handicapped people find shopping in supermarkets difficult. =>It is
Đốt cháy hoàn toàn a mol hỗn hợp X chứa 4 ancol no, đơn chức, mạch hở cần dùng vừa đủ V lít O2 thu được H2O và 11,44 gam CO2. MẶT khác cho toàn bộ X trên vào bình đựng K dư thì khối lượng bình tăng 53,4 a gam. Giá trị V là ?
Vẽ tranh phong cảnh cảnh Các bạn thường hỏi tôi tại sao chơi với những người bạn qua mạng Thật ra bởi vì họ tốt hơn những người bạn ngoài đời
Ai giúp e bàu này với, cần gấp ạ
Bài 2: Chứng minh các đẳng thức sau: a) (a + b + c)(a2 + b2 + c2 – ab – bc – ca) = a3 + b3 + c3 – 3abc b) (3a + 2b – 1)(a + 5) – 2b(a – 2) = (3a + 5)(a + 3) + 2(7b – 10) Bài 3: Tìm x, biết: a/ (3x – 3)(5 – 21x) + (7x + 4)(9x – 5) = 44 b/ (x + 1)(x + 2)(x + 5) – x2(x + 8) = 27 c/ 3(1-4x)(x-1) + 4(3x-2)(x+3) = - 27 d/ (x+3)(x2-3x+9) – x(x-1)(x+1) = 27. Giúp mình với nếu ai làm đúng mình sẽ vote 5 sao+câu trl hay nhất
vẽ đậu mầm cute bằng app ạ. (xấu=bc, ko lấy tranh cũ)
vẽ mầm hoảng sợ nl:ny mình khó hỉu quá chưa làm j cx dỗi
a,căn 5 nhân căn 45 b, căn 13 nhân căn 52 c, căn 12,5 nhân căn 0,2 nhân căn 0,1 d căn 48,4 nhân căn 5 nhân căn 0,5
1. favourite / my / is / Informatics. / subject 2. It' s s_ _ wy today. 3. and Peter / are / friends. / my / Linda 4. France. / friend / are / her / from 5. What d _ _ _ is it today ? 6. He was happy because he was _ _ _ best player. 7. small / she / in a / school. / works 8. where / students from ? / the / are / new 9. what / his hand ? / does / he have / in 10. very / film / exciting. / is / the 11. It _ _ sunny in Hanoi 12. fruit juice ? / you / would / some / like
Test Write the ing form of the following verbs. cause → stay → refer → tie → travel → Choose the correct form: have or has and since or for. They been discussing the problem one o'clock. The candle been burning two hours. Ben been wearing that blue shirt Friday. The researcher been exploring the territory last December. Judith and her boyfriend been kissing ten minutes. Write sentences in present perfect progressive. the cat / the mouse / chase → you / the homework / copy → they / a new gadget / invent → we / in a forum / chat / not → Lucy / on the task / concentrate / not → Write questions in present perfect progressive. Kerry / paint → the secretary / the documents / print out → they / a room / share → the dog / run around / how long → you / at the door / knock / how long → Before submitting the test, check the following: Got the spelling right? Put in the full stop or question mark where required? Used the correct key to type the apostrophe (Shift and #)?
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