[2x-5- căn (x^2+25-x)] ( căn x^2-5x+6) ≤0

1. Viết các PTHH thể hiện tính chất hóa học của phi kim.

Cơ thể có kiểu gen AABbDdee giảm phân sẽ cho bao nhiêu loại giao tử. Loại giao tử mang gen ABde chiếm tỉ lệ bao nhiêu? inh giỏi sinh giúp em với j

Tam giác ABC cân tại C có góc C=100°, kẻ tia phân giác BD. Trong góc BAC kẻ tia Ax tạo với AB một góc bằng 30°. Tia Ax cắt BD tại M, cắt BC tại E. Kẻ tia phân giác BK của góc CBD cắt Ax tại N. a) Tính số đo góc ACM. b) So sánh MN và CE. help me help me help me help me

Lập dàn bài cho đề văn : chứng minh rằng người dân VN từ xưa luôn sống theo đạo lí ''ăn quả nhớ kẻ trồng cây'', "uống nước nhớ nguồn".

Làm hộ mình với . Gấp lắm . m sẽ vote 5 sao cho. Toàn trắc nghiệm thôi

1. How about cycling to school with me tomorrow? (CYCLE) --> Let’s _________________________________________. 2. What is the meaning of this road sign? (MEAN) --> What ___________________________________________? 3. Accident is the main cause of traffic jams in Bangkok. (CAUSED) --> Traffic jams in Bangkok ____________________________________________. 4. People will be fined if they don’t obey the traffic rules. (DISOBEY) --> People will be fined __________________________________________. 5. I spend 30 minutes walking to school every day. (TAKES) --> It _________________________________________.

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Nhiều đề quá làm ko hết giúp mk với ạ Help me help me

III. Supply the correct form of the verbs in brackets: Present Tenses. 1. Listen! I (think) ……………… someone (knock) ……………… the door. 2. Up to the present, we (write) ……………… almost every lesson in the book. 3. The earth (circle) ……………… the sun once every 365 days. 4. I hate living in Seattle because it always (rain) ……………… 5. How many times you (see) ……………… him since he went to Edinburgh? 6. I’m sorry I can’t hear what you (say) ……………… because everybody (talk) ……………… so loudly. 7. No matter where you (go) …………………, the Internet (follow) ……………… you. 8. It (rain) ……………… all week. I hope it stops by Saturday because I want to go to the beach. 9. He is one of the hottest film stars. For the last few months, his face (be) ……………. on the covers of all the top movies. 10. John really (not, like) …………… traveling by bus. He only (travel) …………… by bus when he (have) ……………… no alternative. 11. Jim: “Do you want to come over for dinner tonight?” Denise: “Oh, I’m sorry, I can’t. I (go) ……………. to a movie tonight with some friends.” 12. Tomorrow some friends are coming over. I (not, see) ……………. them for ages and they (be, never) ……………… at my place before. 13. Frank, where have you been? We (wait) …………… for you since 1 p.m. 14. Tim: “What is that sound?” Nancy: “A car alarm (ring) ………………. somewhere down the street. It (drive) …………… me crazy – I wish it would stop! It (ring) ………………. for more than twenty minutes.” 15. In recent years, car manufactures (be) ………………. under pressure to invent a cheaper and better vehicle. IV. Supply the correct form of the verbs in brackets: Simple Past or Present Perfect 1. Nobody knows for certain what the origin of music (be) ………………. 2. Oh no, it’s raining and I (leave) ………………. my umbrella at home. 3. You ever (dream) ………………of living independently from your parents? 4. A: “You (buy) ………………. the tickets for your journey yet?” B: “Yes, I (go) ………………. to the station yesterday and (buy) ………………. the tickets.” 5. A: “Why don’t you want to play football with us this weekend?” B: “I (break) ………………. my leg.” 6. Air pollution (accompany) ………………. civilizations for years. 7. A: “You already (play) ………………. computer games?” B: “No, not yet. I only (buy) ………………. it yesterday and I (not, have) ………………. the time yet.” 8. When I first (meet) ………………. her, I (feel) ………………. so embarrassed, but her smile (help) ………………. me get back my confidence. 9. The progress of science and technology (change) ………………. people’s knowledge of universe. 10. A gifted scientist, Newton (discover) ………………. some of the most fundamental laws in the history of science.