Đáp án:
CHÚC BẠN HỌC TỐT!!!!!!
Giải thích các bước giải:
|x| < 100 => -100 < x < 100
=> x € {-99;-98;....;0;....98;99}
Tổng các số nguyên đó là:
X=(-99)+(-98)+....+(-1)+0+1+.....+98+99
=(-99+99)+(-98+98)+......+(-1+1)+0
= 0+0+0+0+.....+0
= 0
Cho tam giác ABC vuông tại A.Vẽ đường tròn O, đường kính AB. Đường tròn O cắt AB, AC lần lượt tại M,N. a)Chứng minh số đo cung BM=Số đo cung CN. b)Tính số đo cung MON biết BAC =40°
VII. INDUSTRY- INDUSTRIALIZATION- INDUSTRIAL- INDUSTRIALIZE 1. We need to develop local .................................... 2. We were impressed by their ..................................... 3. This type of software is widely used in ....................
VI. THINK – THOUGHT - THOUGTHFUL 1. The red squirrel is in danger of becoming ................................. in England. 2. Servants are now almost ........................ in modern society. 3. The mountain gorilla is on the verge of ..................................... 4. We know of several mass ................................ in the earth’s history. 5. Will technology in music drive creativity to ....................................... 6. The dormouse in Britain may face ................................... if ancient woodland continues to disappear.
V. DANGER- ENDANGER- ENDANGERED- DANGEROUS- DANGEROUSLY 1. Children’s lives are in ......................... every time they cross this road. 2. There is no ........................... of a bush fire now. 3. Police said the man was a ........................ to the public. 4. The prisoners who escaped are violent and ................................... 5. His father is ...................................... ill. 6. This situation is highly ....................................... 7. Mel enjoys living ..................................... 8. The sea turtle is an ................................ species. 9. The health of our children is being .................................. by exhaust fume. 10. Smoking during pregnancy .............................. your baby’s life.
Cho tam giác abc vuông tại a.kẻ đường cao ah,đường trung bình tuyến am.qua a kẻ đường thẳng vuông góc với am cắt đường thẳng bc tại d A;chứng minh ab là tia phân giác của góc dah B;chứng minh bh.cd =bd.ch
Trắc nghiệm k à mn giúp minh nha
Giúp e ạ !!!!!!!!!!!!!!!!!!!!!!!
Giải giúp mình với mọi người 1. They would be disappointed if we……………. a..hadn’t come b. wouldn’t come c. don’t come d. didn’t come. 2. Would John be angry if I ……. ……his bicycle without asking? a.take b. took c. had taken d. would take. 3. She ……….terrible upset if I lost this ring. a.will be b. would be c. were d. had been. 4. If someone…………in here with a gun, I would be very frightened. a.would walk b. walks c. had walked d. walked. 5. What would happen if you ……………..to work tomorrow? a.don’t go b. didn’t go c. won’t go d. wouldn’t go. 6. We ‘ll get wet if we ………….out. a.go b. did go c. went d. had gone. 7. If I go shopping, I ………some food. a.buy b. will buy c. would buy d. would have bought. 8. If I find it, I ………you. a.will tell b. would tell c. had told d. told. 9. What would you do if you……………a million dollars? a.would win b. win c. had won d. won. 10. They ‘d be hurt if I ………………. a.don’t go b hadn’t gone c.would go d. wouldn’t go. 11. If we took the 6: 30 train, we…………too early. a.would have arrived b. arrived c. will arrived d. would arrive. 12. If I had known you were in hospital, I …………to see you. a.will go b. would go c. went d. would have gone. 13. If I …………., I would have said hello. a.had seen b. see c. saw d. would see. 14. I…………..out if I hadn’t been so tired. a.will go b. went c. would have gone d. would go. 15. If I ………..a camera, I would have taken some pictures. a.have b. had c. would have d. had had. 16. You won’t pass the examination……………you study more. a.as long as b. unless c. if d. whether. 17. If only I …………you wanted to invest money in business. a.had known b. knew c. have known d. know. 18. If I were to leave my country , I ……………disappointed. a.probably be b. would have been c. will be d. would be. 19. If he hadn’t wasted too much time, he…………….in his examination. a.would fail b. wouldn’t fail c. wouldn’t have failed. d. won’t fail. 20. If I had taken that English course, I ………..much progress. a.had made b. would have made c. made d. would make. 21. If I were in your place, I ……….a trip to England. a.will make b. had made c. made. d. would make. 22. If I ………….. you , I’d save some of your lottery winning. a.be b. were c. am d. was 23. If the car ……….. larger, we would have bought it. a.had been b. have been c. has been d. been 24. If I had enough money, I ……… abroad to improve my English. awill go b. should go c. would go d. should have go to
1. Theo em, tình huống nào dẫn đến lời thoại trong bức ảnh trên? 2. Em hãy trình bày suy nghĩ của mình về vấn đề: "Virus kì thị" còn đáng sợ hơn cả COVID-19. ai làm được hay mà không copy thì cho câu trả lời hay nhất + cảm ơn + 5sao nhớ hay nhé , không CHÉP MẠNG
Ở quanh con, người tử tế vẫn nhiều Vẫn còn có bao điều tốt đẹp Xa danh lợi hãy chịu nhiều thua thiệt Hãy vì người, nếu mong họ vì con. Rách cho thơm, dẫu đói thì phải sạch Tình thương yêu không mua được bằng tiền Cần gỗ tốt, nước sơn còn phải tốt Oán bên lòng, ơn khắc dạ đừng quên. Nếu vấp ngã, con tự mình đứng dậy Muốn tập bơi, cứ nhảy xuống giữa dòng Thà mất cả, cố giữ gìn danh dự Sống thẳng mình, mặc kệ thế gian cong. ( Trích"Nói với con", Nguyễn Huy Hoàng, nguồn http://baophunuthudo.vn) Từ nội dung đoạn trích ở phần Đọc hiểu, anh/ chị hãy viết một đoạn văn (khoảng 200 chữ) trình bày suy nghĩ về ý nghĩa của việc “Sống thẳng mình” của con người trong cuộc sống hôm nay.
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến