3a) Ta có 12/25=12.4/25.4=48/100
59/100 giữ nguyên phân số
b)Ta có:11/15=11.8/15.8=88/120
9/20=9.6/20.6=54/120
41/120 giữ nguyên p/s
c)Ta có: 40/63=40.4032/63.4032=161280/254016
35/72=35.3528/72.3528=123480/254016
19/56=19.4536/56.4536=86184/254016
Vậy nha mong bạn thông cảm mk cố gắng lắm r
there is one mistake in each sentence . find the mistake and correct it : 1. the show helps me remembering my childhood . 2 . animal programme tell us about the life of animals in the world 3.although my sister loves comedy , but she doesn't have time to watch it . 4.this film is very famous in china but not much Vietnamese know it . 5.what kind of TV programme does your grandfather like most ? giúp em nha.
Một đoạn dây kẽm co độ dài $\frac{2}{3}$m. Với một cái kéo cắt dây kẽm, em làm thế nào để có một đoạn dây kẽm dài $\frac{1}{2}$m
Tặng tỉ nè❤❤❤ hihi hơi lâu sorry
Nghĩa của từ sứ giả là gì ? Sứ giả có phải là từ mượn hay không ? Giúp mình với mình cảm ơn
Tặng điểm mn nek:) Vừa dễ vừa ngắn:3 III. Choose the best answer a, b, c, or d to complete the sentence. 1. My father can make beautiful pieces of art ________ empty eggshells. a. of b. from c. in d. into 2. Why don’t you take ________ a new hobby? a. up b. in c. over d. after 3. Collecting cars is a(n) ________ hobby. It costs a lot of money. a. interesting b. cheap c. expensive d. unusual 4. More people are ________ birds today than ever before. a. seeing b. looking c. hearing d. watching 5. Do you enjoy ________ board games? a. play b. to play c. playing d. played 6. Be careful not to drop it; it’s very ________. a. unique b. fragile c. difficult d. unusual 7. Sam and I ________ the same hobby. We both like playing computer games. a. share b. play c. do d. work 8. I hope he’ll teach me ________ to do eggshell carving. a. what b. where c. how d. when 9. ________ have you had your hobby? ~ For three years. a. How much b. How long c. How often d. When 10. ‘I think model making is an expensive hobby.’ ‘________ it’s incredibly cheap.’ a. You’re right b. Certainly c. No matter d. Not at all
Ưu và nhược điểm của chiết cành cây ăn quả?
Choose the best answer to complete the sentences. 1. There isn’t ....................for dinner, so I have to go to the market. A. any left B. any leaving C. some leaving D. some left 2. A.....................is a small meal that you eat when you are in a hurry. A. snack B. fast food C. breakfast D. lunch 3. ...................is hot food that is quick to cook, and is served very quickly in a restaurant. A. Hot food B. Fast food C. Sandwiches D. Roasted duck 4. ......................water should I put into the glass? A. How B. How much C. How many D. What 5. ......................tomatoes do you need to make the sauce? A. How much B. How long C. How many D. How often 6. .......................bottles of milk does your family need for a week? A. How much B. How many C. How D. How often 7. How many.......................do you want? A. orange juice B. bottle of orange juice C. jar of orange juice D. cartons of orange juice 8. There is....................tofu, but there aren’t.....................sandwiches. A. some-some B. any-any C. some-any D. any-some 9. How many........................do you need? A. cartons of yogurt B. packets of yogurt C. carton of yogurt B. packet of yogurt 10. Can you tell me......................this dish? A. to cook B. how to cook C. cooking D. how to cooking
tìm a,b sao cho : ( 3x ³+ax ²+ bx+9)chia hết cho (x-3)
Tìm giá trị thực của m để (m-1)x2 +(2m+1)x +m+1≥0 vô nghiệm
tính tổnh của tất cả các số nguyên có giá trj tuyệt đối nhỏ hơn 8
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