1. Viết phương trình chính tắc của đường thẳng d đi qua điểm M ( 1 ; -3 ) và nhận vectơ u ( 1 ; 2 ) làm vectơ chỉ phương . 2. Cho đường thẳng ( d ) : x - 2y + 1 = 0 . Đường thẳng ( d' ) đi qua M ( 1 ; -1 ) và song song với ( d ) có phương trình là gì ? 3. Cho tam giác ABC có A ( -2 ; 0 ) , B ( 0 ; 3 ) , C ( 3 ; 1 ) . Đường thẳng đi qua B và song song với AC có phương trình là gì ? 4. Phương trình tham số của đường thẳng ( d ) đi qua điểm M ( -2 ; 3 ) và vuông góc với đường thẳng ( d' ) : 3x - 4y + 1 = 0 là gì ? 5. Cho tam giác ABC có A ( 2 ; -1 ) , B ( 4 ; 5 ) , C ( -3 ; 2 ) . Phương trình tổng quát của đường cao AH của tam giác ABC là gì ?

Tìm số có hai chữ số biết rằng phân số có tử là số đó, mẫu là tích của hai chữ số của nó và có phân số tối giản là 16/9 và hiệu của số cần tìm với số có cùng các chữ số với nó nhưng viết ngược lại là 27

giúp câu 6........................

thuyết minh về một trong những di sản văn hóa phi vật thể của Tuyên Quang

Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits blank (26). Most of the greatest cities in the world are (23) ______ near oceans, rivers, or lakes. New York City, Rio de Janeiro, and Buenos Aires are on the Atlantic Ocean, (24) ______ San Francisco, Tokyo, and Santiago are on the Pacific Ocean. Singapore is located on an island in the South China Sea and Venice is on an island in the Adriatic Sea. London is (25) ______ the Thames River. Paris is on the Seine River. Cairo is on the Nile River and Budapest is on the Danube River. Chicago, Cleveland, and Toronto are on the Great Lakes: Chicago on Lake Michigan, Cleveland on Lake Erie, and Toronto on Lake Ontario. (26) ______ their location, most of these cities have famous (27) ______ associated with water. New York City has the Statue of Liberty Island. San Francisco has the Golden Gate Bridge and Venice has the Grand Canal, to name only a few. A: Because of B: Because C: Since D: As 19 Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. More schools and hospitals are ______ to meet the demand of the increasing ‎number of people in this area. A: set up B: turned up C: made up D: put up 20 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. We have never seen such a pretty flower display. A: This flower display isn’t as pretty as those we’ve ever seen. B: This flower display is prettier than some we’ve ever seen. C: This is one of the prettiest flower displays we’ve ever seen. D: This is the prettiest flower display we’ve ever seen. 21 Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits blank (25). Most of the greatest cities in the world are (23) ______ near oceans, rivers, or lakes. New York City, Rio de Janeiro, and Buenos Aires are on the Atlantic Ocean, (24) ______ San Francisco, Tokyo, and Santiago are on the Pacific Ocean. Singapore is located on an island in the South China Sea and Venice is on an island in the Adriatic Sea. London is (25) ______ the Thames River. Paris is on the Seine River. Cairo is on the Nile River and Budapest is on the Danube River. Chicago, Cleveland, and Toronto are on the Great Lakes: Chicago on Lake Michigan, Cleveland on Lake Erie, and Toronto on Lake Ontario. (26) ______ their location, most of these cities have famous (27) ______ associated with water. New York City has the Statue of Liberty Island. San Francisco has the Golden Gate Bridge and Venice has the Grand Canal, to name only a few. làm câu 26 A: in B: at C: from D: on 22 Mark the letter A, B, C or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions. A: convenient B: metropolitan C: multicultural D: cosmopolitan 23 Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. Many city dwellers are suffered from ______ every day but they have no way out. A: unpleasure and inconvenience B: pleasant and convenient C: unpleasant and inconvenient D: pleasure and convenience 24 Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. A lot of things have been done to save natural resources but it seems not enough. A: exploit B: explore C: protect D: discover 25 Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. My father has just given up ______ . A: smoke B: smoked C: to smoke D: smoking

CÁC BN LÀM MK KO CHO VOTE ĐÂU NHA ĐỪNG MƠ

Fill in the blanks with the correct film related word to complete the sentences. 5. Although I was late for the movie ______ , the staff at the cinema still let me in. 6. The animation Frozen 2’s ______ like music or graphic are amazing. 7. The ________ of the movie was so interesting that it kept the viewers thrilled till the very last minute. 8. The film has a happy ______ when the father and his daughter can finally meet again. 9. The film Sherlock received a lot of positive _______ because the plot was gripping and the actor acted well. Help me mình cần gấp

một máy bơm bơm nước lên cao 12m và bơm trong vòng 15 phút thì đầy bể. biết cong của máy bơm sinh ra trong một giây là 640J. hỏi máy bơm được bao nhiêu l nước

Một hình tròn có đường kính là 0,6m. Tính diện tích hình tròn đó?

Tìm số nguyên x, biết: a/ 5/6 = x−1/x b/ 1/2 = x+1/3x c/ 3/2+x = 5/2x+1 d/ 5/8x−2 = −4/7−x