CMR : 3/4! + 3/5! + 3/6! + ... + 3/100! < 1/3!

Các bạn ơi giúp mình với Nguyên tố hoá học nào có nhiều nhất ở lõi Trái Đất? Nguyên tố hoá học nào có nhiều nhất trong vũ trụ?

a,(a+b+c)^2+(a+b-c)^2 b,(a+b)^3-3(a+b)^2b+3(a+b)b^2-b^3 c,(a^2-b^2)(a^2+ab+b^2)(a^2-ab+b^2)

Find a mistake in each sentence and correct it. She will leave here on next Sunday.

Giải thích giùm em câu này với ạ !!! Even though she was..... the other girls, Jenny didn't win the beauty contest. A. More prettier than B. The prettiest than C. The prettiest among D. Much prettier than

VII. Đổi các câu sau sang phủ định và nghi vấn: 1. My father decorated the Christmas tree. .......................................................... 2. She bought a new dress yesterday. .......................................................... 3. They were late for school. .......................................................... 4. Mr. Tam took his children to the museum last Sunday. .......................................................... 5. Hoa made a cushion for her armchair. .......................................................... 6. They painted their house yellow. .......................................................... 7. This dress was fit. .......................................................... 8. I saw her two days ago. .......................................................... VIII. Đặt câu hỏi bằng từ cho sẵn: a. Her mother gave her a blue dress. (What) .......................................................... b. I went to Nha Trang last summer vacation. (When) .......................................................... c. Mrs. Robinson put the poster on the wall. (Where) .......................................................... d. The dress looked very nice. (How) .......................................................... e. We arrived home at 7.30 yesterday. (What time) .......................................................... f. Ba spoke about his last summer vacation. (Who) .......................................................... g. He taught English at a high school? (What) .......................................................... h. They saw her three months ago. (When) .......................................................... IX. Chia động từ trong ngoặc: I (meet)............ her at the movie theater last night. He (go)............ to the English club every Sunday. But last Sunday he (not go)............ there, he (go)............ to the City’ Museum. My mother (make)............ a dress now. Two years ago, she (teach)............ at a village school. What ............ you (do)............ yesterday morning? We (travel) ............ to Hue next month. They usually (have)............ dinner at home, but they (have) ............ dinner in a small restaurant yesterday evening. The children (be)............ here ten minutes ago, but at the moment they (play)............ in the yard.

Cho mk hỏi câu này dùng" for" tại sao sai ạ? Và tại sao sửa thành "on" ạ My teacher of English said I should spend more time for my pronunciation.

If it (not be) ………….fine, we will cancel the party. The moon (not move) ………………..round the sun. It (move)………….around the earth. The earth (be) ………………………………round. How long it (take) …………….him to get there? – It takes him twenty minutes. You (be) ………………………… Nga ? Yes, I (be) ………………. 29.The children (be) ……………………………. in their class now. 30.They (be) ………………………….workers ? – No, They (not be) …………….. Who you (wait) ……………….for? – I (wait) …………………for my sister.

tìm nhóm trên 100 đ hứa cày vẽ anime full màu

Với giá trị nào của x thì mỗi biểu thức sau có nghĩa