cho 2/x+1/y+1/z=0.tính A=xy/2z2+4yz/x2+zx/2y2

what do you think about your teachers ? ( viet dai khoang 5 - 10 dong )

Tính căn2 +căn3 +căn50 Tính 2/1-căn3 - 2/1+căn3 Giải pt Căn(x-3)2 =9 Căn2x khác5 =7

Tìm những giá trị của x để mỗi biểu thức sau được xác định.làm mỗi câu c thôi giúp mình nhanh nhé mình sẽ đánh gí 5 sao

Giai thich vi sao lai viet nhu the 46. It is useless to persuade him to do this. → There’s no point ______________________________________________________ . 47. It won’t be difficult to get a ticket for the game. → You won’t have any___________________________________________________ . 48. Driving on the left is strange and difficult for Americans. → Americans aren’t _____________________________________________________ . 49. We expect the government to propose changes to the taxation system. → Changes to the taxation system are expected________________________________ . 50. You can try to get Jim to lend you his car, but you won’t succeed. → There’s no point ______________________________________________________

Giúp mình giải thích với ạ mình cảm ơn

1. Lynn wishes she had a bigger apartment and can buy a car. A B C D 2. As soon as the alarm clock rang, she woke up and was getting out of bed. A B C D 3. I haven’t heard from Vicky since a long time. A B C D 4. Mary was drying the dishes when she was dropping the plate. A B C D

Vẽ hộ mình tranh ngồi trong bóng tối với mn, điểm dạo này chán ghê, toàn lẹt đẹt .-.

làm nhanh giúp em ạ (x^2-y^2+6xy+9):(x+y+3)

A. Choose the word or phrase (a, b, c, d) that best fits the blank space in each sentence: 1. Last night I came home, cooked dinner, and _________ TV. a. watch b. watched c. was watching d. would watch 2. I wish I_________ you some money for your rent, but I’m broke myself. a. can lend b. would lend c. could lend d. will lend 3. Would you like_______ and visit me next summer? a. come b. to come c. comes d. coming 4. I have been feeling better since___________. a. the doctor has come b. the doctor comes c. the doctor coming d. the doctor came 5. I wish I___________ Vicky more often. a. see b. will see c. saw d. have seen 6. “Would you like to go to the band concert?” ”Thanks, but I______ it already. a. saw b. was seeing c. have seen d. have been seen 7. Jeans________ of heavy cotton cloth called denim. a. make b. have made c. is made d. are made 8. When I was a child I_________ violin. a. was playing b. am playing c. play d. played 9. In the 1990s, the sale of jeans stopped_____________. a. to grow b. growing c. grow d. to be grown 10. Wearing casual clothes makes students__________ self-confident. a. feel b. to feel c. feeling d. felt