một số giảm đi 3 lần sau đó lại gấp 4 lần thì được 24. tìm số đó

Thế nào trung điểm của đoạn thẳng ?

Giúp mình câu 16 nhà đang cần gấp

1. Nhu cần duy trì là lượng chất dinh dưỡng để vật nuôi A. Vận động, tiêu hóa, bài tiết, trao đổi chất và duy trì thân nhiệt B. Tạo sản phẩm C. Tăng khối lượng cơ thể D. Tăng khối lượng cơ thể, tạo sản phẩm 2. Các chỉ số dinh dưỡng biểu thị tiêu chuẩn ăn: A. Năng lượng B. Protein C Khoáng, protein, năng lượng D. Năng lượng, protein, khoáng và vitamin 3. Trong các chất dinh dưỡng sau, chất nào không có giá trị năng lượng: A. Tinh bột B. Protein C. Vitamin và khoáng D. Lipit 4. Khoáng vi lượng cần thiết cho vật nuôi gồm các nguyên tố: A. Cu, Fe, Co, Mn, Zn B. Ca, P, Al, Bb, Cr C. C, H, O, N, S D. Fe, P, C, H, N, Bo 5. Chất có tác dụng điều hòa các quá trình trao đổi chất trong cơ thể: A. Vitamin B. Protein C. Gluxit D. lipit 6. Những chất cung cấp năng lượng là: A. Gluxit, Protein, Vitamin B. Gluxit, lipit, vitamin C. Gluxit, Protein, Lipit D. Gluxit, Lipit, CHất khoáng

Mọi người giải giúp em với ạ.Cảm ơn mọi người nhiều

Choose the sentence so that it has similar meaning to the first one. Question 25. DIY skills aren’t as hard to learn as I think. A: DIY skills are easier to learn than I think. B: I think DIY skills are easier to learn. C: DIY skills are easier to learn. D: DIY skills are easier to learn as I think. 22 Read the passage carefully, then choose the correct answers. The latest addiction to trap thousands of people is the Internet, which has been blamed for broken relationships, job losses, financial ruin, and even suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could cause serious problems and ruin many lives. IAS is similar to other problems like gambling, smoking and drinking: addicts have dreams about the Internet; they need to use it as the first thing in the morning; they lie to their parents and partners about how much time they spent online; they wish they could cut down, but are unable to do so. A recent study found that many users spend up to 40 hours a week on the Internet. Some of the addicts are teenagers who are already hooked on computer games and who find it very difficult to resist the games on the Internet. What is the best title of the passage? A: The advantage of the Internet B: A guide to the Internet C: Hooked on the Net D: Impact of Internet on teens 23 Choose the best answer a, b, c or d to complete the sentence. Question 9. You can raise a ______ pet like a Neopet if you aren’t allowed to own a real pet. A: beloved B: virtual C: domestic D: weird 24 Choose the underlined part A, B, C or D that needs correcting. Picture 4 A: A B: B C: C D: D 25 Choose the word whose underlined part is pronounced differently from the others. A: enough B: out C: sound D: found

Giải pt $\left \{ {{y+ √(x-3)=1} \atop { √(x-2y)+ √(x+8y+5)=8}} \right.$

I. Choose the correct answer A, B, C or D. 1. During the time of COVID-19 epidemic, we wear masks when going to public places. A. must B. could C. shouldn’t D. mustn’t 2. My sister dances ....................... than me. A. gooder B. weller C. better D. more good 3. Vietnamese government have asked people gather in the time of COVID-19 epidemic. A. to not B. not to C. to D. to have 4. I asked him he came from. A. where B. who C. what D. which 5. It rained hard. , my father went to work. A. Therefore B. However C. Because D. So 6. Your sister writes poems and stories, she? A. does B. doesn’t C. will D. won’t 7. The smaller the room is, the ………….. furniture it needs A. fewer B. less C. small D. more 8. How much do you want? A. bananas B. eggs C. candies D. sugar 9. I’ve never owned ………………independent cat as this one. A. a more than B. such an C. a so D. as much an 10.Tomorrow the director will have a meeting 8:00 am to 10:00 am. A. between B. from C. among D. in 11. The doctor advised me jogging every morning. A. went B. go C. to go D. going 12. The “Washing hands” corona song becomes ........................ on this occasion A. the most popular B. popularly C. popularity D. more popular 13. This road is ....................... than that road. A. narrower B. narrow C. the most narrow D. more narrower 14. He drives ....................... his brother. A. more careful than B. more carefully C. more carefully than D. as careful as 15. American films are …………..the most popular films in my country. A. quite B. much C. really D. by far mấy bạn giúp mk vs mk cần gấp

Giải hộ mình bài 2 và bài 3 với ạ

Cho A = 5/ (cân bậc 2 của x ) -1 . Tìm x để A là giá trị nguyên