Cho x,y,b,d là số tự nhiên khác 0 Chứng minh:a/b<c/d thì a/b<x.a+y.c/x.b+y.d<c/d

the apples in our garden are rip and the oranges won't rip too. đúng thì tick, sai gạch chân và sửa

giai cho minh bài 8 cau 1,2,3 lam trong 10p giup minh minh can gap minh cam on

IV. Give the correct form of the verbs in bracket. 1. The Titanic (cross)_______ the Atlantic when it (strike)_______ an iceberg. 2. In the 19th century, it (take)_______ two or three months to cross North America by covered wagon. 3. Last night at this time, they (not do) _______ the same thing. She (cook) ______ and he (read)¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬_________ the Newspaper. 4. When I (arrive)_____ home last night, I (discover)____that Jane (prepare)______ a beautiful candlelight dinner. 5. After he (finish)____________ his English course, he went to England to continue his study. 6. Angelina Jolie is a famous actress. She (appear)________ in several films. 7. My little sister (watch)________ "sleeping beauty" several times. 8. The train (leave)_____ when we got to the station. 9. I (go) ______ to the same barber since last year. 10. We (have)……………..a party this weekend. Would you like to come? giúp mình với các b ơi

Giúp mình nhé các bạn:)) Mình Vote 5☆

giúp mk vài câu tiếng anh này vs mk sẽ vote cho 5* và cho câu trả lời hay nhất vs bn trả lời đầu nha :3 1. My brother usually (go) …………fishing in his free time. 2. We (not like) …………roller skating because it’s dangerous. 3. I think 20 years from now more people (take up) …………outdoor activities. 4. Jane’s hobby is (cook) ………… . She enjoys (prepare) …………food for her family and friends. 5. What …………your mother (do) …………at weekends? 6. In my opinion, in the future people (not play) …………individual games. 7. We find (arrange) …………flowers interesting because it (help)…………us relax. 8. My father (start) …………the hobby ten years ago after a trip to Ha Long Bay.

trung hòa 200 g dung dịch NaOH 10% bằng dung dịch HCl 3,65%. Tính khối lượng dung dịch HCl cần dùng

giai cho minh cau 7,9 de bai tim x lam trong 10p minh can gap

Tổng số hạt proton, nơtron, electron trong nguyên tử của một nguyên tố là 13. Số khối của nguyên tử là: A 8 B 9 C 10 D 11 ( vì sao không phải là A)

thực hiện phép tính 1, 3 . 5^2 - 16 : 2^2 2, { 315 - [ ( 60 - 41 )^2 - 361 ] . 42 . 17 } + 2885 3, 49 . 48 - 7 . 8 [ 150 : 3 - ( 3^2 - 2^3 )^3 . 43 ] 4, [ ( 36 - 22 )^2 - ( 64 - 52 )^2 ] . 36 - 872 5, ( 81^2 . 5^5 - 15^6 . 25 . 9 ) : ( 2010^2011 . 2011^2012 .... 2016^2017