biết 3 phần 5 số học sinh của một trường tiểu học là 564 học sinh . Vậy 30 % số học sinh của trường đó là

Làm hộ mình phần 2 nhé ko chép mạng mình đang cần gấp mình sẽ vote cho 5* và cám ơn

M=1+3+5+...+(2n-1) (Vơi n ∈ N, n ko phải 0) M co phải sô chinh phương ko?

Giúp đc câu nào thì giúp nha se cho 5*

Tìm x,y thuộc Z biết: x^2+xy-3x-2y+1=0

Cho a thuộc Z . So sánh |a | và a . Mình cần gấp

48 công nhân dự địn hoàn thành công việc trong 12 ngày . Sau đó vì một số công nhân phải điều động đi làm việc khác, số công nhân còn lại phải hoàn thành công việc đó trong 36 ngày. Hỏi số công nhân bị điều động đi làm việc là bao nhiêu công nhân.

Xác định hàm số y= ax +b. Biết đồ thị hàm số song song với đg thẳng y=1/2x+5 cắt trục hoành tại điểm có hoành độ -3 Giải hệ phương trình :(3x+2y=1 2x-y=3

giups mình 2 câu này với. câu 1:em hãy tình bày tóm tắt cuộc khởi nghĩa Lam Sơn từ năm 1424 đến cuối 1426 ? câu 2:tại sao lực lượng quân Minh rất mạnh nhưng ko tiêu diệt được nghĩa quân mà chấp nhận đề nghị tạm hòa của Lê Lợi.

1 Choose the best answer A, B, C or D to complete the sentence. Question 7. The Viet people have many _______ customs and crafts. A: customary B: tradition C: culture D: traditional 2 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: worship B: enjoy C: belong D: behave 3 Choose the sentence which has a similar meaning to the first one. Question 24. While I sympathize with your problem, there is nothing I can do to help. A: I can’t do anything for you, though I understand what you are going through. B: I would like to help you sort out this problem, but I won’t. C: Since I have no idea about your problem, I cannot be of any assistance. D: Perhaps I can help you if you tell me more about your problem. 4 Choose the sentence which has a similar meaning to the first one. Question 22. I only remembered we had a meeting when you called me. A: You always phone me to remind me of when our meeting is. B: As soon as I realized that we had a meeting, you called me. C: I was happy because you remembered to call me for the meeting. D: I didn’t remember about our meeting until you called. 5 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions. The Space of Gong Culture in Central Highlands The space of gong culture in Central Highlands of Viet Nam covers 5 provinces of Kon Turn, Gia Lai, Dak Lak, Dak Nong and Lam Dong. The masters of gong culture are the ethnic groups of Ba Na, Xo Dang, M’Nong, Co Ho, Ro Mam, E De, Giarai... The gong performances are always closely tied to community cultural rituals and ceremonies of the ethnic groups in Central Highlands. Many researchers have classified gongs as ceremonial musical instrument and the gong sounds as a means to communicate with deities and gods. The gongs are made of bronze. Their diameter is from 20cm to 60cm or from 90cm to 120cm. A set of gongs consists of 2 to 12 or 13 units and even to 18 or 20 units in some places. ‎In most of the ethnic groups, namely Giarai, Ede, Kpah, Ba Na, Xo Dang, Brau, Co Ho, etc., only males are allowed to play gongs. However, in others such as Ma and M’Nong groups, both males and females can play gongs. Few ethnic groups (for example, E De Bih), gongs are performed by women only. As for the majority of ethnic groups in Central Highlands, gongs are musical instruments of sacred power. It is believed that every gong is the settlement of a god who gets more powerful as the gong is older. Therefore, gongs are associated to all events in one’s life, such as the inauguration of new houses, funerals, buffalo sacrifice, new harvest, ceremony to pray for people’s and cattle"s health, ceremony to see off soldiers to the front, and the victory celebration. The word “inauguration” in paragraph 4 is closest in meaning to ________. A: opening B: finding C: sale D: building