tìm m để y= $x^{3}$-3(m-1)$x^{2}$+3m(m-2)x+9 đồng biến trên [-2;-1) và [1;2]

1.(the boy) (was taking) to school (by his father) when I (saw) him 2.the exercise (was) (such) difficult (that) we(couldn't do) it (...) tu nao sai

Một loài thực vật, cho 2 cây thuần chủng đều có hoa màu trắng lai với nhau, thu được F1 100% cây hoa màu đỏ. Cho F1 lai với cây có kiểu gen đồng hợp lặn về 2 cặp gen, F2 phân li theo tỉ lệ 3 cây hoa màu trắng: 1 cây hoa màu đỏ. Màu sắc hoa di truyền theo quy luật A. phân li B. tương tác cộng gộp C. tương tác bổ sung D. di truyền ngoài nhân

Tìm số tự nhiên có hai chữ số ab biết rằng số ab3 = $\frac{3}{4}$ . 3ab

giúp mình với https://img.hoidap247.com/picture/question/20210613/tini_1623597521431.jpg

ngu tin ạ, các bác có biết cách nào giúp mik lưu được tranh paint ko

my father the is (the) good family man ,(completely) ( devoted) himself (to) his wife and kids các từ () từ nào sai

1. Why is it important to have a hobby? (Why?) - Yes 2. Do you like learning History? (Why/Why not?) - Yes 3. Do you prefer learning history in the classroom or in the school trip? (Why?) - In the school trip 4. Do you enjoy watching history program on TV? (Why/Why not?) - Yes 5. Is it important to learn about history of other countries? (Why/Why not?) - Important Các câu trên mình đã nêu câu trả lời của mình, các bạn cần khai triển ý từ 3-4 câu trong từng câu hỏi nhé!

Question 1. It's good _______ a glass of warm water immediately after you wake up in the morning. A. drinking B. drink C. to drink D. to drinking Question 2. His mother is very proud of him, _______ she? A. does B. isn't C. doesn't D. is Question 3. Peter_______ have lunch in the school canteen when he was in grade 6. A. used to B. was used to C. gets used to D. is used to Question 4. Traffic _______ in Vietnam usually occur in such big cities as Hanoi and Ho Chi Minh City. A. safety B. system C. light D. jams Question 5. Tuan is a good student. He always answers the teacher's questions very _______. A. rapid B. quickly C. good D. more quick Question 6. The first Earth Day was held _______ April 22, 1970. A. in B. at C. on D. since Question 7. We _______ each other at my aunt's house three years ago and _______ friends ever since. A. met/ had been B. met/ have been C. met/ are D. meet/ were Question 8. This is a difficult problem. I wish I _______ the answer. A. knew B. known C. knowing D. know

Tính `2: (-2/5)=` làm hộ mk ak