tìm các cặp xy 3x+4y=5 với x;y∈Z

tìm các cặp xy 3x+4y=5 với x;y∈Z

Nêu các tác dụng biến đổi chùm tia song song và chùm tia phân kì (thích hợp) của gương cầu lõm ? huhuuhuhuhuhuhuhu mn ơi giúp mình dới ạ i luv u mn nhìu lắm ạ vote + câu trl hay nhất nhé, giúp dới mn ơiiiii i luvvvvv uuuuu <3

Lm giúp cần gấp 2, underline the mistakes and correct them -3, my family is traveling to HCM city by a bus -4, most people doesn't go to work on sunday -5, our classroom is on the two floor -6, his sister often goes to school with an orange small bag -7, mai always helps her mother in the housework -8, would you an apples or any orange juice -9, a lot of my friends play soccer, but not much of them play tennis -10, vy is a very good tennis play. She plays for the school team

Diện tich của 23 % của khu đất hình chữ nhật A là 46 m2 và chiều dài là 100 m2. Tính chu vi khu đất

1He is a ,...........soccer player . he play .......( good/well) 2My grandmother walks ....... ( slow /slowly) 3She sings song...... She sing......... ( beautiful / beautifully) 4Tom is usually .......... He usually writes ........( correct/correctly) 5The man was .......... He shouted ....... ( unhappy/unhappily

2, underline the mistakes and correct them -3, my family is traveling to HCM city by a bus -4, most people doesn't go to work on sunday -5, our classroom is on the two floor -6, his sister often goes to school with an orange small bag -7, mai always helps her mother in the housework -8, would you an apples or any orange juice -9, a lot of my friends play soccer, but not much of them play tennis -10, vy is a very good tennis play. She plays for the school team

Cho phân thức A = 3x+6/2x^2 +4x a. Tìm điều kiện của x để giá trị của phân thức trên xác định b. Rút gọn A c. Tính giá trị của phân thức tại |x-2|=5

Kể tên 5 đồ vật có mối ghép đinh tán, 5 đồ vật có dạng khớp tịnh tiến.

1. The bus collected us ______ 5 o'clock early ______ the morning A. at/in B. at/on C. from/to D. for/in 2. you should listen to the talk _____ before completing the dialogue A. Careful B. Careless C. Carefully D. carelessness 3. Malaysia is divided into two ______, known as West Malaysia and East Malaysia A. religions B. climate C. currency D. regions 4. It was a very fine day. _____, we decided to go for a picnic A. therefore B. But C. however D. Because 5.He never plays video games ,_____? A. Doesn't he B. Does he C. Will he D.didn't he 6. The examiner asked Lan how she _______ English vocabulary A. to learn B. learnt C. learning D. will learn 7." How far is it from your village to the mountain?" -"_______" A.I go by bus B. Good idea C.About 3 kilometers D. See you again 8.We can ________ with our friends and relatives by means of email or chatting A. depend B imporve C.pronounce D. communicate