tại x=4, hàm số y=-1/2 *x^2 có giá trị bằng: A. 4 B. -4 C. -8 D. 8

Vì sao màu da của mỗi người có sự khác nhau

GIẢI THÍCH NỮA ĐÓ NHA , KHÔNG PHẢI CHỌN KHÔNG , GIẢI THÍCH CHỨ KHÔNG PHẢI DỊCH NGHĨA 10. I want to watch the cartoon I turn on the TV. A. but B. so C. although D. because 11. Jerry is a(n) clever little mouse. A. small B. special C. intelligent D. special 12. ‘Let’s learn’ teaches children to study Maths. It’s an program. A. live B. popular C. entertaining D. educational 13. Mai and Lan are interested in listening to music. A. Because B. Both C. Neither D. So 14. The book is the adventure of three close friends. A. on B. from C. at D. about 15. They invite special to appear in the show. A. character B. guests C. foxes D. audiences 16. Millions of children the world enjoy the show. A. all B. in C. around C. over

Nhanh giúp e ạ.Tks,em sẽ đánh giá 5 sao cho ạ

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. A Mission to Mars Have you ever had a dream of traveling to another planet in our solar system? If you have, there is an actual programme that is happening right now, and it hopes to send people to Mars in 2023. Known as the Mars One Mission, it will send a crew of four people on a one -way mission to colonize Mars. Those chosen people will have to be ready to say good-bye to the earth forever, as there will not be a return trip. For the people chosen, they will have to learn to do many different things. First of all, they will be living the rest of their lives with just a handful of other people, so they all must have personalities that allow them to get along. Second, the living quarters that they will have won’t be very spacious, so they will have to deal with that condition as well. If they feel homesick, they will only be able to communicate with people back on the earth via e-mail, video and audio sent back and forth. However, there won’t be any real-time communication. Even at the speed of light, communication between the earth and Mars takes about 20 minutes. Whether the Mars One Mission will actually happen is the big question that a lot of people are asking. There is an enormous skepticism in the science community, and Wired magazine gave the mission a miserable score of two out of ten on its probability scale. However, for those who dream of going to Mars, at least they can say there is a possibility that it could happen. What will NOT happen to the people who go on the Mars One Mission? A: They will live in quarters that don’t have a lot of space inside. B: They will have to live with other people. C: They will return to the earth D: They will communicate with people on the earth.

Task 5: Complete the text below with the past simple or the past continuous of the verbs in brackets. In February 1975, people in the Chinese city of Haicheng (21) ______________ (notice) that snakes (22)__________ (leave) their burrows. This (23) _______ (be) unusual because it (24) _______ (be) the middle of winter and the temperature was below zero. So, why (25)______ the snakes ________ (leave)? The snakes’ behaviour (26) __________ (convince) city officials that an earthquake (27)________ (go) to hit. They (28)__________ (order) people to leave their homes. A few days later, a massive earthquake (29)________ (strike) the city. The snakes’ behaviour (30)_______ (save) hundreds of thousands of lives

bài nì làm sao ạ , em làm sai rồi ạ em mún sửa bài câu a)160% ko pk ạ , =125cm3 ạ

Giúp e với ạh Đọc bài thơ và trả lời các câu hỏi từ 1 đến 3: Cảnh khuya “Tiếng suối trong như tiếng hát xa Trăng lồng cổ thụ, bóng lồng hoa Cảnh khuya như vẽ người chưa ngủ Chưa ngủ vì lo nỗi nước nhà” ( Hồ Chí Minh ) Câu 1: Trình bày ngắn gọn hoàn cảnh sáng tác của bài thơ trên ? Câu 2:Chỉ rõ và phân tích tác dụng của 01 biện pháp tu từ được sử dụng trong câu đầu tiên của bài thơ trên? Câu 3: Nêu ý nghĩa của 02 quan hệ từ tìm được trong 2 câu thơ cuối của bài thơ trên ?

Giúp mình đề này với Ko cần làm câu 10 tự luận nha. Cảm ơn các bạn nhiều...!!!!

Làm hộ mk bài 8,9 vs a Xin cảm ơn