Các Bạn Ơi Giúp mk Với Mk Cần Chụp Gấp

this is my family ...............................................................................................................................................-.......... bài 4 ạ

Làm giúp mình đề 8 nha các bạn !!!

Giúp mình câu này với, cuốn trôi theo môn Lý rồi T.T

mk chỉ cần câu 4 thôi nhé giúp mk nhanh vs mk cần gấp ạ cho tam giác ABC(AB<AC) nội tiếp (O). tiếp tuyến tại A cắt đường thẳng BC tại P. tia phân giác của góc BAC cắt BC và (O) lần lượt ở D, M 1, C/M: OM là trung trực BC 2, a)CM: PA^2=PB.PC b)CM: $\frac{AB^2}{AC^2}$ = $\frac{PB}{PC}$ 3, CM: PD^2=PB.PC 4,tính PA, PC biết AB=20cm, AC=28cm, BC=24cm

cho tam giác ABC,trung tuyến AD.M,N là hình chiếu của D trên AB,AC. CM ....AE//MN

Exercise 3. Read the text then answer the questions. DONKEY In today's modern world of lorries, high-speed railways and super – efficient courier services, it is easy to forget that many rural communities and villages across the world would disappear if there were no donkeys. Much of the world is dependent on donkeys moving food from farms to small towns. Donkeys generally work very hard in rural and mountainous areas where there aren't any modern transport facilities. They carry huge amounts of food from the villages to the towns and bring fertilizers and other supplies back to the village. If a lorry runs out of diesel or petrol, it cannot be used, but the donkey just needs grass, water and rest and is ready to work again for long hours. What are some means of transports in today's world? => __________________________________________ . What would happen if there were no donkeys? => __________________________________________ . Where do monkeys work much? => __________________________________________ . What would happen when a lorry runs out of diesel or petrol? => __________________________________________ . What do donkeys need to work? => __________________________________________ . Hic hic. Giups e với ạ. E cảm ơn nhiều

Ha Long Bay is in Quang Ninh province.It has many islands and caves.The islands are named after things around us.In the bay you can find Rooster and Hen Island (Trong Mai Island) and even Man's Head Island (Dau Nguoi Island). You must take a boat ride around the island essential! Tuan Chau is the biggest island in Ha Long Bay.There you can enjoy great Vietnam seafood.You can join exciting activities.Ha Long Bay is Vietnam's most beautiful natural wonder. 1.Where is Ha Long Bay? 2.Does it have many islands and caves? 3.Is Tuan Chau the biggest island in Ha Long Bay? 4.What can you find in the bay? 5.What can you enjoy there?

Mn giúp mik vs nha Mai mik cần r Mik cảm ơn nhiều

Một ô tô chạy trên quãng đường AB lúc đi ô tô chạy với vận tốc 42 km h Lúc về ô tô chạy với vận tốc 36 km h thì vậy thời gian về nhiều hơn thời gian đi là 60 phút Tính quãng đường AB