`~rai~`
\(6xy(10x-7y)-3y(20x^2-5xy)\\=60x^2y-42xy^2-60x^2y+15xy^2\\=(60x^2y-60x^2y)+(15xy^2-42xy^2)\\=0-27xy^2\\=-27xy^2.\)
Đáp án+Giải thích các bước giải:
`6xy(10x - 7y) - 3y(20x^2 - 5xy)`
`= 6xy . 10x - 6xy . 7y - 3y . 20x^2 - 3y . (-5xy)`
`= 60x^2y - 42xy^2 - 60x^2y + 15xy^2`
`= (60x^2y - 60x^2y) - (42xy^2 - 15xy^2)`
`= 27xy^2`
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16. The weather was bad, but we went on a picnic to Sapa last week. => Despite…………………………………………………………………………………….. 17. Though he has a big house, he wants to live in the boarding house. => In spite of……………………………………………………………………………………. 18. Much as there was a very big rain, we decided to take a long journey to the west. => Despite………………………………………………………………………………………. 19. Although he has a very important job, he isn’t particularly well-paid. =In spite of
Số A chia cho 45 dư 18.Hỏi số A chia cho 15 thì số dư là bao nhiêu
1. Listen! My mother (sing)________________________a song. 2. Every night, We (go)________________________to bed at 10p.m 3. Giang (like)_______________Music but I (like)____________________Math 4. Now, they (stay)___________________________in Hue . 5. My father (read)__________________________a newspaper in the morning 6. Look! Ha (run)______________________. 7. Trang usually (listen)____ to the teacher in the class, but she (not listen)_____now. 8. Where _____________________ your father(be)? -He (be)________ living room. He (watch) ______TV. 9.____________they (go) to school by bus today? 10.There(be)___________many flowers in our garden. 11.Everyday,Mr.Hung (not go)_______________________to work by car. 12.In the autumn, I rarely (go)_______ sailing and (go)________ to school. 13.I (write)_____________________ a letter to my friend now. 14.At 12 a.m every day, I (have)_______ lunch and (go)________ to bed. 15.On Monday, I (have)____________ math and Art.
11. Though you are in a hurry, you should help the disabled people cross the road. => Despite……………………………………………………………………………….. 12. The country is poor, but they should help the homeless people. => Though………………………………………………………………………………… 13. Though we are small students, we should donate books and clothes for the poor. => Despite………………………………………………………………………………… 14. Although you live in hardship, you should help homeless people willingly. => In spite of……………………………………………………………………………………. 15. Although she wore thick clothes, she got some sunburnt. => Despite……………………………………………………………………………………..
Giải giùm mik ii mik sẽ đánh giá cao
6. He is tired, but he is cleaning the beach as a volunteer. => Despite……………………………………………………………………………….. 7. My parents are very poor, but they provide me with enough money every month. => In spite of…………………………………………………………………………….. 8. We are very busy, but we have to take care of the environmental problem. => Despite………………………………………………………………………………… 9. Despite our young age, we should take care of elderly people. => We are young…………………………………………………………………………. 10. Our life is not very good, but we had better help people in a flooded area => Much as……………………………………………………………………………….
Trên (O;2cm) cho 4 điểm A,B,C,D. Lấy điểm K nằm ngoài (O). gọi A', B', C', D' lần lượt là trung điểm KA, KB, KC, KD. Chứng minh 4 điểm A', B', C', D' cùng thuộc một đường tròn.
giúp mình vs ạ chỉ cần đúng là đc đáp án thôi ạ mình đang cần gấp
Các bạn ơi! Mình đang muốn vẽ một cuốn tryện nhưng bí đf tài. Các bạn giúp mk tìm đề tài phù hợp. Và vẽ giúp mk nhân vật chính của truyện nha ( nam đó) Mình cho 5 sao hết nhưnh đừng quy pham luật nha mk bc đó.
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