Nhanh giúp mình , mình cần trước 3 giờ ạ !

Giúp em bài này vs ah em cảm ơn ah

tìm x,bt a) 4x(x-5) - (x-1)(4x-3) = 23 b) (x-5)(x-4)-(x+1)(x-2)=7

`60đ` thì mn có giúp em không ạ :)???? Giải thích chi tiết và rõ ràng giúp em.

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GIÚP EM VỚI Ạ (CÓ KÈM GIẢI THÍCH LUÔN HỘ EM Ạ) VII. Read the passage and choose the correct answers Some people believe that soon schools will no longer be necessary. These people say that because of the Internet and other new technology, there is no longer any need for school buildings, formal classes, or teachers. Perhaps this will be true one day, but it is hard for me to imagine a world without schools. In fact, we need to look at how we can use new technology to make schools better ¬not to eliminate them. We should invent a new kind of school that is linked to libraries, museums, science centers, laboratories, and even corporations. Corporations ought to create learning programs for schools in their area of expertise. Independent experts could give talks on video or over the Internet TV networks and local stations could develop programming about things students are actually studying in schools. Laboratories could set up websites to demonstrate new technology so students could view it on the Internet. Is this just a dream? No. Already there are several towns where this is beginning to happen. Blacksburg, Virginia, is one of them. Here the entire city is linked to the Internet, and learning can take place at home, at school, and in the office. Businesses provide programs for the schools and the community. The schools provide computer labs for people at home. Because everyone has Internet access, older people participate as much as younger ones, and everyone can visit distant libraries and museums as easily as nearby ones. How will this new kind of school change learning? It is too early to be sure, but it is very exciting to think about. Technology will change the way we learn; schools will change as well; and we will all learn something in the process. 1. It can be inferred from passage that ………………………. A. schools are not necessary¬. B. schools are till necessary. C. new technology will replace schools. D. A and C 2. According to the author, the statements below are possible about schools except ………… A. corporations should get involved. B. everyone can visit distant libraries as easily as nearby ones. C. new technology will replace teachers completely. D. new technology will change the way we learn. 3. The future schools should be ……………………….. A. linked to all the capital cities the world over. B. linked to libraries, museums, science centers, laboratories and even corporations. C. for all young international people D. for old people only 4. Which of the following statements is true about Blacksburg? A. It's the biggest library. B. It's the school with new technology. C. It's the city where there are no teachers. D. It's a city in Virginia where learning can take place at home, at school and in offices. 5. How does the author feel about the change of schools in the future? A. Pessimistic. B. Positive C. Depressed D. Indifferent

Bài khó quá hỏi ai cg ko hiểu nhờ giúp ạ.À mỗi bài 57 thôi mấy bài kia chx làm.nhận câu trả lời đến 2h30p nhé lúc đấy đi hc r.

cần bao nhiêu gam NaOH để pha chế 300 ml dd có pH =10

/𝓣𝓱𝓪𝓽 𝓷𝓾𝓬 𝓬𝓾𝓸𝓲 𝓴𝓱𝓲 𝓮𝓶 𝓵𝓪 𝓬𝓸𝓷 𝓰𝓪𝓲/ /𝓛𝓪𝓲 𝓭𝓮𝓶 𝓵𝓸𝓷𝓰 𝓽𝓱𝓾𝓸𝓷𝓰 𝓷𝓱𝓸 𝓶𝓸𝓽 𝓷𝓾 𝓷𝓱𝓪𝓷/ Viết lại dòng trên , đúng font , tone xám/đen Cali cũng đc , nhưng có tâm và tone xám /đen

1. complete the sentences with there is or there are 1. ............ 25 students in the class 2. ......a big wardrobe in my sister's room 3. .......a computer and a tv in my room 4. ....... good programs on television 5 . ......... some furniture in my bedroom 6. .......... four eggs in the fridge 7. ........ a lot of water in the bottle 8. .......... no paper in the printer 2 . complete the questions with Is there or Are there. Then write short anwers 1. .... ......many shops in your town ? Yes, ............. 2. .......... a post office near here ? No, ........... 3. ........... a table and chairs in the kitchen ? Yes, ........ 4. .......... any tress in your garden? No, ............... 5. .......... a book under the table ? No, .......... 6. .......... any girls in the class ? Yes,.......... 7. ............ any coffee in the cup? No,...................... .8. ........... a lot of children in the yard? No,........ 3. Use the words to write positive (+) and negative (-) sentences and questions (?) with there is/ there are 1. a bath in the bathroom (?) ....………............................... 2. some shops near our new house (+) ........................................ .3. a school in the neighbourhood (?) ............................... 4. a television in my bedroom (-) .......................................... 5. any cupbroads in the dining room (?) .................………………......... 6. a swimming pool behind the house (+) ....…………………………… 7. any flowers in the garden(-) ...................................... 8. a lot of posters on the wall(+) ...........................………………