a) $y = 3x$
b)
$x = 5 \to y = 3.5 = 15$
$x = -10 \to y = 3.(-10) = -30$
một vật có động lượng hiển nhiên phải có
4. He has -------------- to do that he can’t go to the cinema with us. A. so much work B. so many work C. such much work D. such a work
1 máy bay đang ở độ cao 3000m trên mực nước dưới biển, tình cờ ngay bên dưới máy bay có 1 chiếc tàu ngầm đang lặn ở độ sâu 900m dưới mực biển. Tính khoảng cách theo chiều thẳng đứng giữa máy bay và tàu ngầm
Tìm ví dụ để minh chứng các hình thức thực hiện pháp luật không hoàn toàn tách biệt, biệt lập mà đan xen lẫn nhau? em dang can gap, mong moi nguoi giup voi a
Mn giúp mik câu 2 phần luyện tập ik. Cảm ơn
Cho A= 1+$\frac{1}{2}$+ $\frac{1}{3}$+...+ $\frac{1}{4026}$ B=1+ $\frac{1}{3}$+ $\frac{1}{5}$+...+ $\frac{1}{4025}$ So sánh : $\frac{A}{B}$ với 1+ $\frac{2013}{2014}$ MN giúp mình nha
1. Last night, we didn’t watch the film on TV because it was_______ A. bore B. bored C. boring D. boredom 2. Mai enjoys _________ sea food with her parents. A. to eat B. eating C. eat D. to eating 3. What would you like ________? – Cowboy movies. A. to watch B. to play C. to listen to D. to read 4. What is your ______?_ I’m one meter 60 centimeters tall A. height B. high C. tall D. measure 5. Last week Hoa ______to class because she had a bad cold. A. doesn’t go B. didn’t go C. go D. to go 6. _________you listen to music last night? A. Were B. Are C. Do D. Did 7. What about _______ to the cinema? A. going B. go C. goes D. went 8. Where __________ yesterday evening? Ạ. were you B. did you go C. did you stay D. all are correct 9. How _____________are you? - One meter 50 centimeters. A. height B. tall C. heavy D. long 10. Long was absent ________ class yesterday. A. from B. of C. away D. off 11. What does Mr Tan tell her ________? A. to do B. do C. does D. doing 12. She needs ___________ my temperature. A. to make B. to do C. to take D. to have 11 I need ___________ your height. A. measuring B. measures C. measure D. to measure 14. What was _________ with you? A. problem B. matter C. wrong D. right 15. _____ there a cure for the common cold? A. Is B. Are C. Do D. Does 16. Her cold will _________ for a few days and then disappear. A. lasted B. last C. to last D. lasts 17. The nurse told Hoa ______ to the waiting room. A. to return B. returning C. return D. returns \ 18. My sister is having a pain _______ her head. A. on B. at C. in D. of 19. Everybody ________ the symptom of the common cold. A. knows B. know C. knew D. to know 20. Why _______ he go to school last Monday? – Because he was sick. A. does B. did C. doesn’t D. didn’t II. Use the correct verb forms- verb tenses: 1. The children stopped _________________outside at recess because the weather was awful ( play) 2. Nobody knows how ________________ a cold ( cure) 3. You should _______________ to bed before 10 p.m ( go) 4. Don’t forget _________________ off the lights. (turn) 5. Her mother wants her ___________________ too much candy ( not eat) 6. Last night, the children ______________ meat and vegetables for dinner ( have) 7. Remember _________________your teeth after meal. ( brush) 8. I ________________ him playing soccer yesterday.( not see) 9. They ought ___________________ in the river because it is very dangerous ( not swim) 10. Would you like ______________my ipad, Hoa ? ( use)
Cho tam giác ABC cân tại A có AB=10cm, M là trung điểm của BC, AM=6cm Phát biểu nào trong các phát biểu sau đây là sai? Vì sao? a. AM⊥BC b. BAM=CAM c. AM>BC/2 d. AM<BC/2
Làm cho em bài giúp em bài 2 là mã với
Giải phương trình 2.( 8x-1)^2.(4x-1)=9
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến