Giúp e tìm tập xác định của các hs vs ạ, giúp e từng bước giải nhé ạ.E cảm ơn

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mọi người giải thích dùm em vs ( vì học sinh dốt nên mọi người giải thích rõ dùm em) em cảm ơn nhiều ạ

Một tấm bìa có hịhf chữ nhật có chiều dài 9/4m chiều rộng 3/4m chia tấm bìa thành 4 phần bằng nhau .tinh diện tích mỗi phần

Giúp mình cái này ạ, mình xin cảm ơn

a, 7/12 - 1/4 : ( -4/11 - x) = - 125%

Mình thắc mắc một số thuật ngữ giới vẽ: Art collab là gì Trace là gì Thief là gì Trace là gì Nhận req là gì Comm là gì AT là gì MT là gì

EXERCISES 1 (UNIT 1- English 8) giúp em vs ạ em cho 5* I. Choose the word that has the underlined part pronounced diferently. 1. happy character fat classmate 2. teacher pleasure please meet 3. character Christmas children school 4. tomorrow brown now how 5. slim thin smile visit II. Choose the correct answer. 1. That singer is tall and ……………. short long slim strait 2. It is not polite to ………………….. her. orphan annoy joke straighten 3. We like him very much because he’s very ……………… blond curly fat generous 4. A lot of young men have volunteered …………….. social activities. in at for about 5. Our neighbor always shows …………………. sociably sociability society social 6. It is funny to tell …………….. joke jokes joking joker 7. Our parents always behave …………………… toward us. generously generosity generous generally 8. They helped those street children ………………….. volunteers voluntary volunteer voluntarily 9. Our students are …………………… straighten straightness straightly straight-forward 10. That boy has short ……………. hair. curl curly curling curls 11. He is a natural ………………. His hair is pale gold in color. Man blond blonde color 12. Generosity is part of the Vietnamese …………………. character characterize characterful characteristic 13. She has long ……………….. hair. fairly fair curl fairness 14. A home for children whose parents are dead is an ………………… orphan orphanage organ organize 15. He is unwilling to show his feelings. He is ……………….. reserve reserved reserving to reserve 16. I …………… a letter from my old friend last week. sent gave received took 17. She spends most of her free time ……………….. volunteer work. doing to do do for doing 18. He is ………………. to ride his bike to school. not enough old enough not old not old enough enough old 19. She is wearing a ………………………….. dress. red new pretty new pretty red pretty red new pretty new red 20. Her mother ……………….. this city two years ago. Left leaves is leaving will leave 21. I find Peter is not communicative. He’s rather ………………… in public. kind reserved sociable humorous 22. He enjoys ………………. to music while he’s studying. to listen listen listening to listening 23. Each of them …………………. a different character. have has to have having 24. A child whose parents have died in called a(n) …………………. cousin neighbor nephew orphan 25. Lien is very shy but her sister is …………………… reserved generous outgoing kind

Qua văn bản " Phong cách Hồ Chí Minh" , em học tập đc những phẩm chất gì từ Bác( viết đoạn văn khoảng 10 dòng) *KHÔNG CHÉP MẠNG

Bài 7: (2,5 điểm) Cho tam giác ABC có AB = AC. Gọi M là trung điểm BC. a) Chứng minh tam giác ABM = tam giác ACM. b) Trên cạnh AM lấy điểm K bất kỷ. Chứng minh KB = KC. c) Tia BK cắt cạnh AC tại F, tia CK cắt cạnh AB tại E. Chứng minh EF//CB