Giúp mình vs mình cần gấp mơn trước

Tìm a,b để G(x) = x^2021 + x^7 + ax^2 + x +b chia hết cho đa thức H(x) = x^2 +x +1

nếu cho cây thân cao giao phấn với cây thân thấp ta có phép lai: A.P:AAxaa và P:Aaxaa B.P:Aaxaa và P:AaxAa C.P:AAxaa và P:Aaxaa D.P:Aaxaa và P:Aaxaa

Câu 1: Cho phương trình 3x + 4y = 5 . Khẳng định nào sau đây là sai? A. Phương trình có vô số nghiệm trên R B. Công thức nghiệm tổng quát của phương trình là: C. Phương trình có cặp nghiệm là cặp số tự nhiên D. Phương trình không có nghiệm là cặp số nguyên âm. Câu 2: Phương trình ax + by =c là phương trình bậc nhất hai ẩn, trong đó a, b, c là các số đã biết, với: A. a ≠ 0 hoặc b ≠ 0 và x, y là các ẩn B. a, b là các số nguyên, a ≠ 0; b ≠ 0 và x, y là các ẩn C. a2+b2= 0 và x, y là các ẩn D. a2+b2= 0;x ≠ 0;y ≠ 0 cảm ơn các bạn

c) C = 6 + 11 + 16 + 21 + .. . + 301 d) D =8 + 15 + 22 + 29 + .. . + 351. Tính tổng giúp mk với ạ ! Lẹ lẹ với ! 5-6 phút nữa mk phải nộp rồi ~

60 điểm : Giúp mik bài 4 ( 4 ý trở lên ) ( Cố gắng làm xong trong tối nay )

vẽ ảnh anime nam

1 Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A: cloth B: close C: clock D: clog 2 Mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the following questions. Question 9. When my family goes camping, the most interesting thing is to ___________the tent. A: take up B: put up C: make up D: get up 3 Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions Picture 9 A: A B: B C: C D: D 4 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits blank (21). In the United States and Canada, it is very important to (17) ______a person directly in the eyes when you are having a conversation with him or her. If you lookdown or to the side when the (18) ______ person is talking, that person will think that you are not interested in what he or she is saying. This, of course, is not polite. If you look down or to the side when you are talking, it might (19) ______ that you are not honest. However, people who are speakingwill sometimes look away for (20) ______ seconds when they are thinking or trying to find the right word. But they always turn immediately back to look the listener directly in the eyes. These social "rules" are (21) ______for two men, two women, a man and a woman, or an adult and a child. A: like B: such as C: the same D: likely 5 Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. A: peaceful B: friendly C: quiet D: nomadic 6 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits blank (17). In the United States and Canada, it is very important to (17) ______a person directly in the eyes when you are having a conversation with him or her. If you lookdown or to the side when the (18) ______ person is talking, that person will think that you are not interested in what he or she is saying. This, of course, is not polite. If you look down or to the side when you are talking, it might (19) ______ that you are not honest. However, people who are speakingwill sometimes look away for (20) ______ seconds when they are thinking or trying to find the right word. But they always turn immediately back to look the listener directly in the eyes. These social "rules" are (21) ______ for two men, two women, a man and a woman, or an adult and a child. A: get B: talk C: notice D: look 7 Mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the following questions. Question 8. My father and I enjoy________ kites and _______ the sunset. A: flying/watch B: flying/watching C: fly/watching D: fly/watch 8 Mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the following questions. Question 10. Visiting ________ increases my knowledge about cultures in the past. A: museums B: hometown C: cinemas D: mausoleums 9 Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A: prevented B: decided C: rented D: looked 10 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits blank (20). In the United States and Canada, it is very important to (17) ______a person directly in the eyes when you are having a conversation with him or her. If you lookdown or to the side when the (18) ______ person is talking, that person will think that you are not interested in what he or she is saying. This, of course, is not polite. If you look down or to the side when you are talking, it might (19) ______ that you are not honest. However, people who are speakingwill sometimes look away for (20) ______seconds when they are thinking or trying to find the right word. But they always turn immediately back to look the listener directly in the eyes. These social "rules" are (21) ______ for two men, two women, a man and a woman, or an adult and a child. A: few B: a little C: a few D: little

chuyển động tịnh tiến là là lá:trái đất..........

Cho tam giác AOB cân tại O.Kẻ tia phân giác của góc AOB cắt AB tại H a) chứng minh HA=HB B) trên canh OA lấy điểm N Sao cho OM=ON. Chứng minh HM=HN c) chứng minh MN song song AB