Làm giúp minh 2 bài này vs Hứa ctlhn😘
Tia tới SI hợp với mặt gương 1 góc = 40o. Quay gương 1 góc = 10o . Tìm góc tạo bởi tia tới và tia phản xạ bây giờ ( Làm bằng 2 cách )
Giúp nữa nha. Phần tiếp theo nèk
PUT THE VERB INTO THE CORRECT 1.TEENAGERS FANCY ( SOCIALIZE) .... WITH THEIR. 2.WHEN MY GRANDMA WAS A SMALL CHILD , SHE ( HAVE TO) ..... LOOK AFTER HER YOUNGER BROTHERS AND SISTERS AT HOME . giúp em hai câu này với , em cần gấp lắm , cảm trước ạ , em sẽ vote 5 sao , mn ơii=((
Cho x+y=7.Tính giá trị của biểu thức A=x ³ + 3x ²y + 3xy ² + y ³ + 2x ² +4xy +2y ²
11. Have you guys had enough to eat? * A. That's all right. B. Is there any more rice? C. It's not the right time. 12. That's my coat over there. * A. Will you take it off? B. No, you haven't! C. Here you are. 13. Let's go by bus. * A. The train was expensive. B. We'll buy a ticket. C. It'll take too long. 14. Do you know my brother Charlie? * A. Sorry, he's not here. B. I don't think I do. C. I know. 15. Would you like some ice in your drink or not? * A. I hope so. B. Yes, I shall. C. I don't mind. 16. I hope I haven't ...... you any trouble by changing the arrangements. * A. put B. caused C. made D. done 17. The floor is wet: don't run or you might ...... ! * A. stoop B. spill C. slip D. spin 18. When you come to my house, ...... your camera with you. * A. take B. show C. fetch D. bring 19. Paul arrived at the shop ....... as the manager was closing for the day. * A. even B. just C. still D. right 20. I would ...... to stay at home and relax for a change. * A. rather B. better C. prefer D. enjoy 21. Is there ...... of food for everyone? * A. adequate B. enough C. sufficient D. plenty 22. Lily says she's happy at school but she's ...... complaining. * A. rarely B. sometimes C. always D. often 23. ...... the step when you go in. * A. Consider B. Mind C. Attend D. Look 24. ...... stay the night if it's too difficult to get home. * A. At all costs B. By all means C. In all D. On the whole 25. No ...... Hannah is happy when you think how many prizes she has won recently. * A. surprise B. problem C. question D. wonder Chỉ cần đáp án cả nhà nhé!
Giúp mình nhaaaa ròi giải thích cho mịnh
Tính D = (1/2² - 1) (1/3² -1) (1/4² - 1)...(1/100² - 1)
Vẽ đậu mầm tức giận NL: Cho hỏi trên hoidap có đc đào mộ câu của ng khác để tl k ?
Bạn nào giải nhanh nhất nhận được 10 điểm ạ ;-;
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