ai làm giúp em với ạ, em đang cần gấp

So sánh: `a)` $2^{90}$ và $5^{36}$ `b)` √48 + √120 và 18

Cho HCN `ABCD`. `E\in AB, BF ⊥DE, AG ⊥CE, BF ∩AG=H`. CMR: `HE` luôn đi qua một điểm cố định

mn ơi mình cần gấp giúp đi có bạn nào giỏi văn ko

Khi rót nước sôi vào 2 cốc thủy tinh dày và mỏng, cốc nào dễ vỡ hơn, vì sao?

Present simple or present continuous They____( play ) football in the park every weekend What time____ ( she /finish) school every day? Our teacher always _____ ( give) us homework What____( they /do ) at the moment? The exams ____( start) next Monday "Are you a singer?" No, I'm a pilot. I ____( fly) airplanes Agatha Christie____ (live) from 1890 to 1976

giúp mik với trả lời bàng tiếng anh nhé câu 10 ( các bạn hãy đọc bình luận đi)

I. Will + V or to be going to + V? 1. I promise I (drop) in on you some day. 2. I think our team (win). 3. Jane (come) in ten minutes. She has phoned me. 4. - Oh dear. I can’t move it. - Don’t worry. I (help) you. 5. I am in need. you (lend) me some money? 6. - What’s the matter? – My motorcycle (not) start. 7. - I think we (have) glorious weather tomorrow. – I hope not. giúp em với ạ , em cho5 sao hết ạ

Địa 10 dựa vào hình 2.3 sgk trang 11 hãy cho biết bão đổ vào nước ta theo hướng nào? bão mạnh nhất là vào thời gian nào khu vực nào? thời gian có bão nhiều nhất là vào tháng mấy?

VII. Fill in a suitable word The smoke signals used (..1..) American Indians did not convey the complex messages seen in Hollywood movies. Smoke signals (..2..) in fact used by the semi-nomadic tribes of the Great Plains. However, their content was limited (..3..) a few simple messages whose meaning had been agreed upon in (..4..). For example, Piman warriors in Arizona who had just finished a successful raid might send up a column of (..5..), and the village would reply with two columns of smoke. Smoke signals (..6..) most commonly used to broadcast news of victory in battle, or to warn of sickness in a camp or dangers (..7..) as approaching enemies. Fires fed (..8..) damp grass or boughs of evergreen sent up the one or two simple, unbroken columns of smoke needed to send a message. The place that the signal comes from - (..9..) on a hill or in a valley - conveyed most of the meaning. When Apaches out hunting spotted another group of Indians in the distance, they (..10..) a fire conspicuously to the right of their own party that meant “who are you?”. Mình cần gấp ạ