Vẽ mầm NL: nốt câu này xong em đi ngủ 😢

câu 1 : tính tổng các phần tử . A = { 3;6;9;....;363 }

Một ô tô xuất phát từ A đi đến B rồi đến C với vận tốc 46km/giờ. Cùng lúc đó, một người đi xe máy xuất phát từ B đi tới C v ới vận tốc 35km/giờ. Biết AB là 33 km. Hỏi sau mấy giờ ô tô đuổi kịp xe máy. chỗ đuổi kịp xe máy cách C bao xa?

Những phát biểu nào say đâu đúng? Trong Logo, A. các lệnh của một thủ tục có tên là lucgiac đặt giữa hai dòng lệnh to lucgiac và end B. để thực hiện một thủ tục lucgiac ta gõ lệnh lucgiac trong ngăn lệnh và nhấn Enter C. để lưu thủ tục lucgiac vào bộ nhớ, trong ngăn lệnh ta gõ lệnh edit “lucgiac D. để lưu các thủ tục vào tệp baihoc.lgo, trong ngăn lệnh ta gõ lệnh save “baihoc.lgo

72. The number of schoolboys in my class twenty. A) am B) is C) are D) be 73. A large number of the applicants A) has already been interviewed B) have already been interviewed C) already has been interviewed D) already have been interviewed 74. The secretary and the accountant of the company yet. A) do not come B) does not come C) has not come D) have not come 75. So far everything——-—-—- all right. A) is B) has been C) have been D) are 76. His family a rich family. A) is B) are C) be D) to be 77. Twenty five dollars too much to pay for this book. A) seem B) seems C) to seem D) seeming 78. There_ the cattle in the field. A) is B) are C) be D) to be 79. He looks sad because no one_and believes in him. A) understand B) understands C) to understand D) understanding 80. Many teachers and students_at the lecture last night. A) is B) are C) were D) was 81. To my opinion, living in happiness for ten years a long time. A) has not been B) are not C) have not been D) will not be 82. His silence that he agrees with us. A) mean B) means C) have meant D) meaning 83. Their news to us once a year. A) come B) comes C) came D) has come 84. The policemany enquires about the murder up till now. A) has made B) is making C) have made D) makes 85. All the equipment in this laboratoryfrom Japan last year.. A) is imported B) will import C) imports D) was imported 86. His knowledge of butterflies, in fact,very wide. A) is B) are C) be D) to be 87. anybody at home? A) Are there B) Is there C) There is D) There are 88. One of the girlsto visit that old man every Sunday. A) go B) goes C) went D) had gone 89. Mumps usuallya mild fever. A) cause B) have caused C) causes D) was caused 90. Everybody to do their best at present. A) are trying B) is trying C) try D) tries 91. The development of synthetic fabrics new challenges to chemical engineers for years. A) bring B) brings C) has broughtD) to bring 92. Furniture made in this workshop very expensive but very good. A) am B) are C) be D) is 93. Vegetables will grow well if there enough water. A) are B) were 94. My homework lately..A) do B) does C) did D) has been done 95. All of the food served in this restaurant yesterday . excellent. 96. Neither you or I responsible for the bad result. 97. Mr. Thomson with his wife and his three children abroad. 98. Neither Henry nor his friends_ _yet. A) come B) comes A) are B) is C) was D) were A) be B) are A) be B) are C) am D) is C) has come D) have come 99. Measles a dangerous disease. A) be B) are C) am D) is 100. I don't like the people who (show) no interest in anything. A) show B) shows C) to show D) showing 101. Mathematics to us by Mr. Thém now. A) is teaching B) teaches C) are taught D) is being taught 102. The news about the earthquake in Philippineson radio several times so far. A) has already broadcast B) has already been broadcast C) will already broadcast D) already broadcast

vẽ hoa hướng dương đi, màu tối chút nha ...thích cùng lúc nhiều ng thì có vấn đề về não ko:))

Em hãy nêu ý nghĩa của chi tiết trong truyện Thánh Gióng: “ đang đánh giặc, roi sắt gãy, Gióng nhổ tre quật vào đám giặc tơi bời ” Mọi người giúp em với ạ 🥺🥺 Làm theo công thức trên nha 🥰

60. The majority of the students him to be innocent. A) believes B) believe C) believing D) to believe 61. Not only he but also his friends this film. A) liking B) to like 62. This pair of scissors dull (khöng sång). A) am B) is C) are D) was 63. Everybody him because he as well as his family well-known. A) love/ are B) loves/ is C) to love / were D) loving/ was 64. Either he or his parents seeing horror films. A) liking B) to like C) like D) likes C) like D) likes 65. Athleticsmy favorite sports. A) am B) is C) are D) be 66. Both the boss and his secretary flying to Paris. A) am B) is C) are D) be 67. Half of the students in this class from southeast Asia. A) am B) is C) are D) be 68. Most of the furniture in my house comfortable. A) am B) is C) are D) be 69• Most of these books_ interesting for the children. A) am B) is C) are D) be 70. Eight hours of sleep_ enough for him to drive. . A) am B) is C) are D) be 71. Many famous pop stars been ruined by drugs. A) have B) has C) to have D) having

Nhà trường, gia đình và xã hội có trách nhiệm gì đối với việc giáo dục thế hệ trẻ Giúp mình với ạ

Cho ΔABC vuông tại A. a)CMR: Tan $\frac{B}{2}$ = $\frac{AC}{AB+BC}$ b)CMR: tan $\frac{B}{2}$ * tan $\frac{A}{2}$ * tan $\frac{C}{2}$ = $\frac{AB.AC.BC}{(AB+BC)(AC+BC)(AC+AB)}$ c)CMR: cot $\frac{B}{2}$ = $\frac{AB+BC}{AC}$ => cot $\frac{A}{2}$ * cot $\frac{B}{2}$ * cot $\frac{C}{2}$ =..........