các bạn giúp mình với , mình cần gấp

một mảnh vườn hình chữ nhật có chu vi 100m. nếu tăng chiều rộng 3m và giảm chiều dài 4m thì diện tích giảm 2m ² . tính diện tích của mảnh vườn

Giúp cái nhanh lên đấy toàn trắc nghiệm thôi cho 6 sao vs ctlhn 2 lần luôn

Part 2: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. (1.0 pt) Along with jogging and swimming, cycling is one of the best all-round forms of exercise. It can help to increase your strength and energy, giving you more efficient muscles and a stronger heart. But increasing your strength is not the only advantage of cycling. Because you’re not carrying the weight of your body on your feet, it’s a good form of exercise for people with painful feet or backs. However, with all forms of exercise it’s important to start slowly and build up gently. Doing too much too quickly can damage muscles that aren’t used to working. If you have any doubts about taking up cycling for health reasons, talk to your doctor and ask for his/her advice. Ideally you should be cycling at least two or three times a week. For the exercise to be doing you good, you should get a little out of breath. Don’t worry that if you begin to lose your breath, it could be dangerous and there must be something wrong with your heart. This is simply not true; shortness of breath shows that the exercise is having the right effect. However, if you find you are in pain then you should stop and take a rest. Question 29: People with back problems might go cycling because__________. ​A. it enables them to carry the weight of their body on their feet ​B. it does not make them carry the weight of their body on their feet​ ​C. it helps to make their backs become stronger ​D. it helps them to relieve their backache Question 30: All forms of exercise must be started__________. ​A. gradually​B. quickly​C. strenuously​D. violently Question 31: According to the writer, it is best to go cycling__________. ​A. once a week​​B. at least two or three times a week ​C. at least two or three times a day​D. every day Question 32: Which of the following is NOT included in the advantages of cycling? ​A. Giving you a stronger heart​B. Increasing your strength and energy ​C. Giving you better muscles​D. Making you look younger Giúp hộ :((

Một xe máy đi từ A đến B với vận tốc và thời gian dự định trước. Sau khi đi được nửa quãng đường, xe tăng vận tốc thêm 10km/h, vì vậy xe máy đi đến B sớm hơn 30phút so với dự định. Tính vận tốc dự định của xe máy, biết quãng đường AB dài 120km.

Viết dòng : "Mình hiền lành tử tế quá" Bằng bút mực, nét thanh đậm NL:khen avt nhóm t đẹp đi rồi t vote choa :>

Ai giúp mình làm bài này với ạ🥺🥺

Part 1: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 28. (1.0 pt). ​Approximately 350 million people speak English as their first (25) __________. About the same number use it as a second language. It is the English language that is used as the language of aviation, international sport and pop music. 75% of the world mail is in English, 60% of the radio station (26) ________ in English and more than half of the world’s periodicals are printed (27) __________ English. It is an official language in 44 countries. In many others, it is the language of business, commerce and technology. There are many varieties of English, but Scottish, Australian, Indian and Jamaican speakers of English, (28) ________ the differences in pronunciation, structure and vocabulary, would recognize that they are all speaking the same basic language. Question 25: A. language B. languages C. linguistics ​D. linguist Question 26: A. speak B. broadcast ​C. write ​D. listen Question 27: A. by B. in ​C. as ​D. of Question 28: A. in spite of B. in spite ​C. despite of D. although Giúp mik :))

We have never eaten this kind of food before

Cho a,b,c nguyên dương là độ dài 3 cạnh của 1 tam giác vuông a) CMR : trong 3 số a,b,c luôn tồn tại ít nhất 1 số chia hết cho 3 b) Biết a + b + c = 12. Tính a,b,c