Cho hàm số y=-2x^2 có đồ thị là (P) (Giải thích công thức do lỗi phông: ==-2x lũy thừa 2) a, Vẽ đồ thị (P) của hàm số b, Cho điểm A(3;m) thuộc (P). Tính giá trị m. c, Xác định giao điểm của (P) và đường thẳng (d) y=-3x+1 bằng phép toán

13. Một vật có khối lượng m = 1 kg rơi tự do từ độ cao1,8 m so với mặt đất? lấy g = 10 m/s2. a. Tính cơ năng của vật ở độ cao trên? b. Tính vận tốc của vật khi chạm đất? c. Ở độ cao nào thì thế năng bằng một nửa động năng? 14. Một vật rơi tự do từ độ từ độ cao 120 m xuống đất. Lấy g = 10 m/s2. Bỏ qua sức cản. Tìm độ cao mà ở đó động năng của vật lớn gấp đôi thế năng:

1. when the mailman / was sleeping / The Le family / came /. --->The Le ........................................................................................... 2. our accommodation is / at a hotel because / the ticket price / We’ll stay / included in /. --->We’ll stay 3. the crowd / won the race, / was cheering/ When Nam / . ---> When Nam 4. the school drum was / arrived at school, / sounding / When Lan /. ---> When 5. the plane got / raining when / to Ha Noi / It was /. --->It was .............................................................

Ai cho mình cái đáp án chính xác với

Viết đoạn văn nêu cảm nhận của em về hai khổ thơ: Ta làm con chim hót Ta làm một cành hoa Ta nhập vào hòa ca Một nốt trầm xao xuyến. Một mùa xuân nho nhỏ Lặng lẽ dâng cho đời Dù là tuổi hai mươi Dù là khi tóc bạc. gúp mình với các bạn

Viết đoạn văn ngắn gọn sự kế thừa và sáng tạo ở câu thơ không khói hoàng hôn cũng nhớ nhà của Huy Cận trong thơ Tràng Giang

Giúp mình câu b vs.....................

Giải hộ mik 2 bài toán bài1 và bài 2 mik đag cần gấp

1 Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. The book / I / just / read / interesting. A: The book which I had just read is interesting. B: The book which I have just read is interesting. C: The book who I have just read is interesting. D: The book whom I have just read is interesting. 2 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: ancient B: ocean C: celebrate D: special 3 Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSET in meaning to the underlined word(s) in each of the following questions. I am very much interested in learning more about ecotourism and its benefits. A: advantages B: problems C: dangers D: issues 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 (26). The United States has many different types of families. While most American families are traditional, (23)_______ a father, a mother and one or more children, 22 percent of all American families in 1998 were headed by one parent, usually a woman. In a few families in the United States, there are no children. These (24) _______ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they (25)_______ physically able to have children. Other families in the United States have one adult (26)_______ a stepparent. A stepmother or stepfather is a person who joins a family by marrying a father or a mother. Americans tolerate and accept these different types of families. In the United States people have right to privacy and Americans do not believe in telling other Americans what type of family group they must belong to. They respect each other’s choices regarding family groups. Families are very important (27)_______ Americans. A: who is B: is C: which has D: which is 5 Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. Viet Nam is a tropical country. It has a lot of beautiful scenery. A: Viet Nam is a tropical country which has a lot of beautiful scenery. B: Viet Nam is a tropical country who has a lot of beautiful scenery C: Viet Nam is a tropical country which it has a lot of beautiful scenery. D: Viet Nam is a tropical country where has a lot of beautiful scenery. 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 (23). The United States has many different types of families. While most American families are traditional, (23)_______ a father, a mother and one or more children, 22 percent of all American families in 1998 were headed by one parent, usually a woman. In a few families in the United States, there are no children. These (24) _______ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they (25)_______ physically able to have children. Other families in the United States have one adult (26)_______ a stepparent. A stepmother or stepfather is a person who joins a family by marrying a father or a mother. Americans tolerate and accept these different types of families. In the United States people have right to privacy and Americans do not believe in telling other Americans what type of family group they must belong to. They respect each other’s choices regarding family groups. Families are very important (27)_______ Americans. A: consisting of B: consist of C: consisting D: including of

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