xét chiều biến thiên y= căn 2x^2 + 1

Complete the sentences with the correct word(s). Example: She tried on the dress in the shop. off on up 1 Have you __________ your bed this morning? done made cleaned 2 They don’t go __________ to eat very often. off out up 3 The hotels are too expensive, so we’re __________ at a campsite. staying hiring renting 4 How do you __________ this word? repeat underline pronounce 5 We’re seeing our cousins next week. We’re really looking __________ it. for forward to after 6 The town centre was very __________. There were a lot of people. quiet boring crowded 7 My university course starts __________ October. in on at 8 We __________ at the hotel very late last night. got arrived came 9 I __________ Victor some money last month, and he hasn’t paid me back. spent lent borrowed 10 Don’t eat all that cake! It’s really __________. unhealthy uncomfortable polluted 11 What did you think __________ the play? off for of 12 This lesson started __________ 9.15. You’re late again! on in at 13 I’m going to _______ Chris to our picnic this weekend. meet invite stay 14 Don’t worry _______ the washing up. I’ll do it later. about for on 15 Who’s paying _______ the car parking? to for on

giúp mik b3 vs cảm ơn nhiều nha

Tìm số có hai chữ số ab biết nabn=21×ab

làm nhanh bt tính nha mk cho 5 sao + tim

Ai giải giúp tôi với đang rất cần

Với sự xuất hiện lý luận của Adam Smith, kinh tế chính trị mới trở thành môn khoa học từ thế kỷ thứ mấy?

Vẽ cho mik 1 cái avt digi càng đơn giản càng tốt, chỉ màu trắng, đen thôi nhé, tks!

Complete the sentences with one word. 7 That restaurant makes the _______ delicious food in town. 8 Did you watch the programme about Brazil _______ night? 9 _______ were forty people at the party. 10 I need ___to____ buy a new computer. 11 He’s going to visit his family in Rome _______ week. 12 _______ many people live in your house? 13 Did you see the accident _______ morning? 14 Have you _______ been to Asia? 15 They’ve bought _______ little house in the south of Spain.

Cho tam giác ABC vuông tại A đường phân giác của góc B cắt AC tại D. Từ D kẻ DE vuông góc với BC (E thuộc BC). Gọi F là giao điểm của tia ED và tia BA a) Chứng minh tam giác ABD= tam giác EBD b) Chứng minh AF = EC