mn giúp mình bài 4

Tích phân của x^5(1-x^3)^6dx cân từ 0 đến 1 giúp mình bài này vs ạ

Giúp mk câu cuối bài 2 và bài 4 nk

hậu quả của việc làm điều xấu xa, độc ác

A. PHONETICS I. Write the sound /e/ or /eI/ of the underlined letter(s) 1. train / / 6. left / / 11. sail / / 16. healthy / / 2. seatbelt / / 7. ahead / / 12. safety / / 17. plane / / 3. mistake / / 8. station / / 13. railway / / 18. great / / 4. helmet / / 9. helicopter / / 14. brake / / 19. record / / 5. way / / 10. pavement / / 15. pedestrian / / 20. said / / II. Underline the words having the sound /e/ and circle the words having the sound /eI/ in the sentences below. Then read the sentences aloud. 1. Which one is better, train or plane? 2. Great! This is the best way to the railway station. 3. Let’s take a break and have some fresh bread! 4. For your safety, you must obey the traffic rules when driving. 5. Jane was standing on the pavement waving her friends. 6. The wet weather is expected to continue in central valley. 7. I sat waiting patiently for the wedding to end. III. Find the word which has the different sound in the underlined part. 1. a. break b. bread c. instead 2. a. lane b. stay c. traffic 3. a. record b. vehicle c. lesson 4. a. jam b. narrow c. carry 5. a. means b. great c. seatbelt B. VOCABULARY AND GRAMMAR I. Write the means of transport under the correct pictures d. health d. wait. d.zebra d.danger d.teacher bike plane truck train ship motorbike car boat bus subway helicopter van 1………………… 2………………. 3………………. 4…………………. 5………………… 6………………… 7……………….. 8………………….. 9………………. 10……………… 11……………….. 12……………….. II. Match the words in part 1 with definitions. 1. A large, heavy vehicle with wheels. It is used for carrying goods. __________ 2. A vehicle with two wheels that you ride by pushing its pedals with your feet __________ 3. A vehicle that has two wheels and an engine. __________ 4. A large machine that runs along a railway line. It can carry many people. __________ 5. A very large boat used for carrying people or goods across the sea. __________ 6. A aircraft with large metal blades on top that spin and lift it into the air. __________ 7. A vehicle that flies in the sky and has wings and one or more engine. __________ 8. A large vehicle with lots of seats. It carries passengers from one place to __________ another. 9. A small vehicle that travels on water, moved by oars, sails or a motor. __________ 10. A railway system that runs under the ground below a big city. __________ III. Complete the sentences with the correct tense or form of the verbs from the box. ride drive fly sail cycle reverse get on get off 1. My uncle used to be a pilot. He ___________ helicopters. 2. __________ a number 73 bus. That will take you to Islington High Street. 3. He ________into a lamppost and damaged the back of the car. 4. When being stuck in a traffic jam, some people __________ their motorbikes on the pavement. 5. The old man got into a Rolls Royce and __________ away. 6. I will get myself a little boat and ________ it around the world. 7. When we reach the next stop, we’ll ____________. 8. In the afternoon, Mai usually _____________ round the lake near her house.

Hình ảnh con thuyền trong cảnh vượt thác gợi cho em suy nghĩ gì về quá trình vượt thác? (Cuộc vượt thác diễn ra như thế nào?) (Vượt Thác: Võ Quảng)

Câu 2. Hỗn hợp hai khí H2 và O2 ở đktc được điều chế bằng cách điện phân nước. Tính tỉ khối của hỗn hợp khí trên so với khí CH4. b. Có một hỗn hợp khí gồm 15g NO và 2,2 g Hidro Hỗn hợp khí trên nặng hay nhẹ hơn khí Metan (CH4) bao nhiêu lần

zub min voi cau 4 voi 5 min vote

Giải hộ mình 2 bài này vs mấy bạn.Tks nhiều nhen.

Ba tấm vải dài tổng cộng 210m. Sau khi bán 1/7 tấm vải thứ nhất, 2/11 tấm vải thứ hai và 1/3 tấm vải thứ ba thì chiều dài của 3 tấm vải còn lại bằng nhau. Hỏi mỗi tấm vải lúc đầu dài bao nhiêu mét ?