tìm một vài phân số a/b sao cho 1/2 <a/b<3/5

moi ng lam ho em tap lam van

Tại Gia Định thì nhân dân ta đã kháng chiến chống thực dân Pháp như thế nào?

Chép lại các câu ghép có trong đoạn văn sau rồi phân tích những câu đó: Chiều nay, đi học về, Thương cùng các bạn ùa ra cây gạo. Nhưng kìa, cả một vạt đất quanh gốc gạo phía mặt sông lở thành hố sâu hoắm, những cái rễ cây gầy nhẳng trơ ra. Cây gạo chỉ còn biết tì lưng vào bãi ngô. Những người buôn cát đã cho thuyền vào xúc cất ngay ở khúc sông dưới gốc gạo. Cây gạo buồn thiu, những cái lá ụp xuống, ủ ê.

a) Cho tam giác ABC vuông tại A có: AB = x, AC = x+ 1, BC = x + 2 (x > 0). Tính x. b) Cho tam giác ABC có: AB = x, AC =x+ 1, BC = x + 2 (x > 0). Xác định x để góc A = 90°.

Giúp mik vs Mik sẽ cho 5* Làm hết nha

cho tam giác ABC kẻ AH vuông BC . biết AB=5cm , BH=3 cm ,BC=10cm a:biết góc C=30 độ .tính góc HAC b:tính độ dài các cạnh AH,HC,AC

Viết CTHH axit từ các chất oxit thích hợp sau:Mn2O7;MnO2;SO2;NaCl

Mn ơi giúp e 2 câu lũy thừa, logarit này với ạ. E cảm ơn

I. Choose the word with the underlined part pronounced differently in each line: A. thin B. than C. they D. there A. birthday B. earth C. worth D. there A. another B. death C. brother D. though A. thank B. mother C. thunder D. throat A. they B. three C. thirst D. thread Answer: 1......, 2......, 3 ......, 4........., 5..........., II. Complete each sentence with a suitable question word: 1. _____ did you live last year? - In London. 2. _____ lessons do you have today? - Five. 3. _____ is that man at the door? - My uncle. 4. _____ do you go shopping? - At 4o’clock. 5. _____ do you feel? – Happy. 6. _____ is your sister? - 7 years old. 7. _____ does the concert start? - At 8p.m 8. _____ nationality are you? - American. III. Make questions for the underlined words or phrases. 1. He lives in a county house with his friends. 2. They are moving to an apartment next month. 3. She often plays badminton with her friends. 4. The pictures are on the wall. 5. There are two pillows on the bed. 6. The dog is in front of the computer. 7. There is a bookshelf next to the table. 8. Mi’s new house has two bedrooms IV. Complete the sentences with suitable conjunctions: 1. She likes swimming ..... jogging. 2. We were late .... there was an accident. 3. I like Paris .... I want to go home now. 4. I didn’t feel well .... I stayed at home. 5. I am very exciting ... I am meeting my favourite MC. 6. You can watch TV now ....... don’t spend too much time on it. tiếp theo I. Choose the word whose underlined part is pronounced differently from the others 1. A. arrived B. believed C. received D. hoped 2. A. opened B. knocked C. played D. occurred 3. A. rubbed B. tugged C. stopped D. filled 4. A. dimmed B. travelled C. passed D. stirred 5. A. tipped B. begged C. quarrelled D. carried 6. A. tried B. obeyed C. cleaned D. asked 7. A. packed B. added C. worked D. pronounced 8. A. watchedB.phoned C. referred D. followed II. Complete the sentences using the past simple form of the verbs. 1. I _____ at home last weekend. (stay) 2. Angela ______ to the cinema last night. (go) 3. My friends _______a great time in Nha Trang last year. (have) 4. My vacation in Hue ______ wonderful. (be) 5. Last summer I _____ Ngoc Son Temple in Ha Noi. (visit) 6. My parents ____ very tired after the trip. (be) 7. I _______ a lot of gifts for my little sister. (buy) 8. Lan and Mai _______ sharks, dolphins and turtles at Tri Nguyen aquarium. (see) 9. Trung _____ chicken and rice for dinner. (eat) 10. They ____ about their holiday in Hoi An. (talk) III. Write the negative from the positive sentences. 1. My friends and I went to the theatre two days ago. 2. He played his electric guitar in the past. 3.We ate in the restaurant yesterday. 4. My parents arrived at 7a.m to take me to the airport last week. 5. The doctors wore blue uniform last month. 6. We waited for my mum to take us to school yesterday. 7. They went to hospital in 2018. 8. She went to the supermarket and bought some food last week. 9. They opened a new library two months ago. 10. My friends watched a video clip on youtube three days ago. Write complete sentences. Use the past simple of the verbs. 1. you/ go swimming/ yesterday? 2. My father/ play golf/ yesterday 3. Phong/ listen to music/ two hours ago. 4. We/ not go/ school last week. 5. Lan/ cook/ chicken noodles/ dinner last night.