Trình bày đặc điểm kinh tế Châu Đại Đương

Rubber - band jumping/make/inexpensive/game

Cho tam giác ABC có đường cao AH = 3cm ,đoạn thẳng HB dài gấp đôi HC .Biết diện tích tam giác AHC=3 cm vuông .Tính diện tích tam giác ABC Giúp mik với !Đang cần gấp!

Giúp em cho 5* Xin lỗi vì chữ xấu quá Mọi người thông cảm

cho tam giác ABC có ba góc nhọn. Kẻ đường cao AH. Trên đoạn AH lấy điểm M. Đường tròn tâm O Bk AM cắt AB ở D và AC ở E a) C/m tứ giác MECH nội tiếp b) C/m góc AMD= góc ABC cC/m AD*AB=AE.AC

Tìm hiểu sự phát triển của nền văn học, nghệ thuật, giáo dục, khoa học kĩ thuật của nước ta cuối thế kỉ 18 đến nửa đầu thế kỉ 19

I. 1)they were planting potatoes in the garden when it suddenly.................................... A.rain B. was raining C.rained D.rains 2)tony wasn't in class today.............was caroline A.neither B. either C.both D.one of 3)she...........come on holiday next month if her parents give her permission A.can't B.could C.will be able to D.should 4) I......Ann for a long time now A. didn't see B.don't see C.haven't seen D.haven't been seen 5) the sun was out and the birds were singing. it was..........a beautiful day A.so B.such C.many D.much 6 )John is a good employee since he doesn't mind ....................at weekends A.work B.worked C.have worked D.working 7)take two tablets daily.....................the doctor tells you to stop. A.until B.because C.but D.however 8)she could not go to school.......................her sickness A.because of B.because C. although D. therefore 9)there's a law that says that you ..........throw trash on the street A.couldn't B.mustn't C.mightn't D.don't have to 10)I've worked here ...................I left college A.when B.during C.since D.until 11)poets write a lot of beautiful poems thanks to............. A.fashion B.tradition C.inspiration D.convenience 12)ASEAN,..............ten countries in the south East Asia,is both a political and economic society A. that includes B. which includes C.which including D.includes II. 1)she accused me for not telling the truth A B C D 2)all applicants must have an university degree. A B C D 3)how much people are there in the stadium today? A B C D 4)his good sense of humorous distinguishes him from his brothers A B C D 5)she can't accept the invitation because she is sickness. A B C D 6)for my opinion,we can reduce the amount of garbage we produce by recycling things A B C D III) 1.my mother wasn't with me when I was sick =>I wish...................................................... 2.someone saw the missing child in the supermarket =>the missing child.......................................... 3)they can't read or write =>if only......................................................

Vì sao ở Trung và Nam Mĩ có gần đủ khí hậu trên Trái Đất

Cho cung lượng giác a thỏa mãn cos a= -2/3 và pi trên 2 <a<pi. Tinh sin a

easy/when/English/speaker/a/you/it/speak/native/not/is/to Sắp xếp giúp em với ạ,