Cho đoạn thẳng AB dài 8 cm , lấy điểm M sao cho AM = 4 cm a, tính độ dài đoạn thẳng MB b, Điểm M có phải là trung điểm của AB không ? vì sao ? c, Trên tia đối của tia AB lấy điểm K sao cho AK = 4cm . So sánh MK với AB

3) 57. (-231) + 131 . 57 4) 2019 + (412 - 2019) 5) 246 + (-17) + (-246) + 24

Kẻ hình làm hai bài hộ e với nha<3

1. even/ I/ me/ if/ will/ to/ never/ apologizes/ forgive/ he/ him. 2. to/ You/ may/ have/ early/ you/ if/ leave. 3. specialties/ Thailand/ local/ visit/ ,/ the/ to/ try/ happen/ should/ you/ you/ If. 4. harder/ your/ you/ work/ in/ can/ you/ achieve/ If/ more/ ,/ life. 5. promotion/ he/ get/ must/ to/ dedication/ show/ wants/ his/ James/ hard/ If/ work/ ,/ and. 6. Will/ time/ you/ afford/ come/ can/ to/ you/ my/ if/ house? 7. if/ job/ he/ do/ to/ What/ change/ can/ he/ wants/ his? 8. trouble/ ,/ you/ in/ help/ can/ are/ call/ you/ me/ If/ for. 1. Jim/ always/ ask/ me/ what/ I/ do/ lf/ I/ see/ shooting star. 2. My mother/ often/ add/ stick/ cinnamon/ in/ soup. 3. If/ you/ can/ not/ drink/ black/ coffee/ ,/ you/ can/ add/ milk/ or/ sugar. 4. How/ the/ cake/ taste/ if/ we/ add/ drop/ olive/ oil? 5. My son/ not/ eat/ salad/ if/ there/ be/ tomatoes/ in/ it. 6. My sister/ often/ eat/ slices/ bread/ with/ strawberry/ jam/ for/ breakfast. 7. Yesterday/ my/ mother/ and/ I/ buy/ some/ tin/ sardine/ and/ vegetables. 8. If/ you/ want/ your/ dish/ look/ better/ you/ garnish/ it/ with/ vegetables Giúp mk vs

VIII. Choose the word which best fits each gap. While art may not be vital to fulfill our basic needs, it does make life (1) ________. When you look at a painting or poster hang on your living room wall, you feel happy. The sculpture on the kitchen windowsill create a (2) ________ of joy. These varieties of art forms that we are surrounded by all come (3) ________to create the atmosphere that we want to live in. Just like art, music can make life extremely joyful and can have a huge effect (4) ________ our mood. If you have something hard or difficult to work on or are feeling tired, an energetic song will likely (5) ________you up and add some enthusiasm to the situation. Similarly when stress is high, many people find that relaxing to calming music is (6) ________ that eases the mind. 1. a. boring b. beautiful c. joyful d. helpful 2. a. sense b. feel c. cause d. way 3. a. away b. along c. down d. together 4. a. on b. in c. at d. of 5. a. take b. wake c. pick d. bring 6. a. something b. anything c. everything d. nothing IX. Read the text carefully, then answer the questions. Modern graffiti began in big cities in the United States in the 1970s. One of the first ‘taggers’ was a teenager called Demetrius. He wrote his tag TAKI 183 on walls and in subway stations in New York. Other teenagers saw Demetrius’s tag and started writing their own tags on walls, buses and subway trains all over New York. Then, some teenagers started writing their tags with aerosol paint. Their tags were bigger and more colourful. Aerosol paint graffiti became very popular in the 1970s and 1980s and appearedon trains, buses and walls around the world. In the 1990s and 2000s, a lot of graffiti artists started painting pictures. In some countries, writing or painting on walls is a crime and street artists can have problems with the police. In other countries, artists can draw and paint in certain places. For example, in Taiwan, there are ‘graffiti zones’ where artists can paint on walls. In São Paulo in Brazil, street artists can paint pictures on walls and houses. Their pictures are colourful and beautiful. Some tourists visit São Paulo just to see the street art! 1. Where did modern graffiti begin? 2. What was Demetrius’s tag? 3. What did young people write on New York walls? 4. When did aerosol paint graffiti become popular? 5. Is graffiti legal in every country in the world? 6. Where can artists paint in graffiti zones?

IV. Using the correct form of the word in brackets: 1, Mr.Nam is a teacher . Now he (teach) at Le Loi school ........................... 2, Today is (beautiful) than yesterday. ...................................................... 3, What a (beauty) girl! .............................................................................. 4, Who is the (tall) in your class? ............................................................... 5, Doctor Jone’s (invent) is well known all over the world......................... 6, He seldom (do) his homework. He is a lazy student........................ 7, Tam has a big (collect) of foreign coins………………………………… 8. I was very (bore) with the film last night……………………………….. 9, Who is (tall) than Hung ? ............................................. 10, Today is a (wonder) day. ............................................ 11, Mr.John’s (invent) is well known all over the world. 12, Mr.Pike is working on a farm . He is a (farm) ......................................

1. 4g and 4h___________ HELP ME PLS!!!!! 2. 3h and -2h _______________ 3. 5x and 4xy ______________ 4. 2x2y3 and 2x2y5 ______________ 5. 5p2q3and -4p2q3 ______________ 6. 8rs and -8rs ______________ 7. 2x2 and 3x2 ______________ 8. 5m8n3 and 2m2n5 _______________ 9. 2r and 6s _______________ 10.4st and -3st _______________

Làm giúp em bài số 3 đi mọi người

Biết 10 lít cát có khối lượng 15kg a,Tính khối lượng riêng của cát. b,Tính thể tích của 2 tấn cát.

ai giải hộ mik vs cho phương trình ẩn x:(m^2-4)x+2=m(1) a)tìm m để (1)là phương trình bậc nhất 1 ẩn b)tìm m để(1)có vô số nghiệm c)tìm m để (1) vô nghiệm d)tìm m ∈Z để(1)có nghiệm nguyên duy nhất