Đáp án:
$(x-3)+(x-2)+(x-1)+...+10+11=11$ \[\to 3x-6=-55\to x=\dfrac{-49}{3}\]
x=-49/3
Giải thích các bước giải:
(x-3)+(x-2)+(x-1)+...+10+11=11
x-3+x-2+x-1+...+10+11=11
3x+(-3-2-1+0+...+11)=11
3x+60=11
3x=-49
Một mảnh đất hình chữ nhật có độ dài đường chéo là 13cm và chiều dài lớn hơn chiều rộng 7m. Tính diện tích hình chữ nhật đó
Mọi người tl giúp mình với ạ. Ko spam nhé, mình báo cáo.. . Write the film review, using the following cues. A Film Review What kind the film is: a Disney cartoon film What the title of the film is: Atlantis: The Lost Empire Who the film is directed by: Gary Trousdale and Kirk Wise Who the main character is: a scientist named Milo Thatch Who the characters are played by: Milo’s voice is played by Michael J. Fox A short description of the plot (the story): A rich man gives Milo a submarine and a team of people to help him find the Lost Empire of Atlantis. After some exciting adventures, Milo and his team find Atlantis. But Atlantis is in trouble. Milo has to save it. Details of special effects/ costumes/ music, etc.: The music in this film is amazinH. What we think is good or bad about the film: The film is sometimes scary, but it is very excitinH. A recommendation (advice about whether your classmates should watch this film and who will enjoy it): If you like action films and cartoons, you will love Atlantis: The Lost Empire.
P=x^2/(x^2+x+1) Chứng minh:P>2/3
Ai giỏi tiếng anh thì giúp mình với nhá III.Choose the item among A, B, C or D that bets answers the question about the passage. Thanksgiving Day is a holiday that Americans celebrate the honor of everything the country offered to their ancestors, who were among the first immigrants to the United States. When they first came to America, they saw that there were enough food and opportunity for everyone. They were even helped by the Indians, who taught them how to grow all kinds of new vegetables, such as corn and yams, or sweet potatoes. On Thanksgiving Day, it is traditional to eat a big meal together. Americans eat food that was found here by their ancestors. They usually eat turkey with sweet potatoes, Indian corn bread, and have pumpkin pie for dessert. Every Thanksgiving Day, a giant parade is held by one of the most famous department stores in New York. It is an annual event. And at the end of the parade, children can even see Santa Claus, who is visiting from the North Pole. Santa Claus is invited to remind children and parents that Christmas is not far away. 26.Thanksgiving Day is celebrated . A. to honor the new country B. to remind people of cold winter C. to honor their ancestors D. to remind people of Indians 27.The first white people to America were helped by Indians . A. to know how to grow new vegetables B. to have more opportunities C. to form the new nation D. All are correct 28.The traditional meal on Thanksgiving Day is. A. a big meal with turkey, Indian corn bread, and pumpkin pie B. everything they have C. food provided by the Indians D. food provided by Santa Claus 29.What is the main activity in New York on Thanksgiving Day? A. A giant parade is held by one of the most famous department stores. B. A big march by Santa Claus. C. A giant parade is held by Santa Claus, children and their parents. D. A giant parade is held by the Indians. 30.Santa Claus is invited to the parade on Thanksgiving Day . A. to remind everyone that New Year is not far away B. to remind everyone that a new Thanksgiving Day is coming C. to remind everyone that Christmas is not far away D. to remind everyone of their ancestors
Tìm tất cả các danh từ đơn vị trong truyện Thạch Sanh
giup mik với tìm số tự nhiên x biết :(35+x) -81=54
Giúp em đi ạaaaaaaaaaaaaaaaaaa
bài cuối nha mấy bạn,giúp mình với
Mọi người giải giúp mình hai bài này Và cho mình biết làm thế nào để quy đồng mẫu số đc k ạ
dân gian có câu tục ngữ '' Gần mực thì đen gần đèn thì sáng''. Hãy chứng minh tính đúng đắn của câu tục ngữ đó
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