X là nguyên tố phi kim . Hợp chất của X với hidro có CTTQ : XH 3 chứa 8,82% hidro (về khối lượng ) . Nguyên tố X là : A. N B. P C. S D. C

tìm số nguyên x biết : a)-2(2x-8)+3(4-2x)=-75-5(3x-7) b) 3×|2x^2|=33 c) x-14=3x+18 d) 2(x-5)-3(x-4)=-6+15×(-3)

Một người đi xe máy mỗi giờ đi được 37,5 km. Hỏi người đó đi được quãng đường bao nhiêu km trong 1/3 ngày.

Giúp tớ bài này với tớ đang cần ạ! Giúp tớ nha, hứa vote 5⭐️ nha!!

Chị giải giúp e bài 3 cho cháu nhé

Nhờ mọi người giúp đỡ, cảm ơn nhìu

Giúp mình bài 5 và bài 6 với mn ơi. Mình cảm ơn

Use the correct form of the word given in each sentence. 1. Have you read the___________of our school closing ceremony? (ANNOUNCE) 2. In the 18thcentury jean cloth was made___________from cotton. (COMPLETE) 3. The next stage in the development of television is___________TV. (ACTIVE) 4. Some___________have raised people’s awareness of rhinos’ protection. (CONSERVATION) 5. Sweden has a(n) ___________solar energy program. (ADVANCE) 6. We all enjoy listening to his___________stories. (HUMOR) 7. Who is the___________of the telephone? - Alexander Graham Bell. (INVENT) 8. The Internet has___________developed and become part of our life. (INCREASE) 9. Strong___________should be taken to preserve historic sites. (ACT) 10. He has been___________as our group’s leader. (NOMINATE)

viết phương trình đường thẳng có hệ số góc là -1 và đi qua gốc tọa độ

Combine two sentences into one sentence, use a suitable conjunction: 1. Jim was absent from class yesterday. He was suffering from a bad cold. …………………………………………………………………………………………………………… 2. They decided to move their house. They don’t have to travel a long distance to work. …………………………………………………………………………………………………………… 3. Mary hurt her fingers yesterday. She was preparing dinner. …………………………………………………………………………………………………………… 4. At 4 p.m. yesterday, my mother was cleaning the house. I was looking after my younger brother. …………………………………………………………………………………………………………… 5. They decided to go on an excursion. They want to get away from work stress. …………………………………………………………………………………………………………… 6. My father taught me how to use a computer. Before that, I didn’t know how to use it. …………………………………………………………………………………………………………… 7. I arrive at the station. I will call you right after that. …………………………………………………………………………………………………………… 8. My brother is very out-going. I am quite reserved. …………………………………………………………………………………………………………… 9. Mr. Peter was walking home. He was robbed of his wallet. …………………………………………………………………………………………………………… 10. I don’t have a pet. My mother doesn’t allow me to have one. .........................................................................................................................