Đáp án:
Giải thích các bước giải:
k) `45 : 2 4/7 + 50% - 1,25`
`= 45 : 18/7 + 1/2 - 5/4`
`= 45 . 7/18 + 1/2 - 5/4`
`= 35/2 + 1/2 - 5/4`
`= 18 - 5/4 = 72/4 - 5/4 = 67/4`
Học tốt. Nocopy.
K, 45:18/7+1/2-5/4=35/3+1/2-5/4=18-5/4=72/4-5/4=67/4
xin ctlhn nhé
(1-1/21).(1-1/28).(1-1/36).......(1-1/1326)
Bài 1 a, Tìm STN x , biết : 128 - 3 . ( x + 4 ) = 23 [( 4 . x +28 ) . 3 + 55 ] = 35 ( 12 . x - $4^{3}$ ) . $8^{3}$ = 4 . $8^{4}$ 720 : [ 41 - ( 2 . x - 5 )] = $2^{3}$ .5 b, Tìm số tự nhiên x , biết rằng nếu nhân x với 5 rồi cộng thêm 16 , sau đó chia cho 3 thì được 7 c, Tìm số tự nhiên x , biết rằng nếu chia x cho 3 rồi trừ đi 4 , sau đó nhân với 5 thì được 15 CÁC BN GIÚP MIK LM HẾT NHA
(xin dau hieu nhan biet .-.) IV. Choose the correct answer to complete the sentences. 1. I love going to this place (so/ though/ so that/ as) it’s the quietest place in the city. 2. They keep changing the decorationof the shop (so that/ because/ although/ when) they can attract more young people. 3. (When/ Although/ Whereas/ In order to) she’s young, she’s the most famous artisan in the village. 4. Do you know who’s (bringing out/ taking over/ passing down/ turning down) his pottery workshop? 5. I’ve (found out/ closed down/ looked through/ lived on) the product catalogue and decided to buy this table. 6. This sports centre is so small that is cannot (keep up with/ face up to/ deal about/ set up) the demands of local residents.
(xin dau hieu nhan biet) III. Complete the passage by filling each blank with the correct form of the word in brackets. Some people ask me if I living in my hometown. The answer is certainly ‘yes’. The simple reason is that it has lots of (1. interest)____________ places. If you want to widen your knowledge of the past, you can go to the museum. It’s a (2. history)____________ building, with a big collection of valuable artefacts. There is also a craft village in my hometown. There, the (3. village)____________ make drums. Their drums are not only famous in the (4. local)____________, but also nationwide. You can visit the old workshop, where drums are still made in the traditional way. Some of them are huge! Another (5. attract)____________ in my hometown is the local library. It’s an (6. educate)____________ place where anyone can borrow books and take them home to read. Besides, it also has a (7. read)____________ club. I’m one of its members, and we gather once a week to discuss what we’ve read together. My hometown is also a (8. culture)___________ centre, with many traditional festivals and activities. I love it very much.
Cho hàm số y= -3x a) Vẽ đồ thị của hàm số b) Trong các điểm A(4; 3); B (-6:19); C (2;6) và D(2;-6) điểm nào thuộc đồ thị của hàm số (có giải thích) Giúp mik, hứa vote 5 sao nếu đúng!
Giúp mình câu này với ạ giải chi tiết nha .Mình xin cảm ơn
Soạn bài Đồng chí ( nêu đôi nét về tác giả, tác phẩm : bố cục, HCST, PTBĐ, Thể loại+ Trả lời câu hỏi cuối bài) No copy
Làm hộ em bài.3. với ạ , em cảm ơn
the teacher said:" I am a teacher"
(xin dau hieu nhan biet) II. Choose the correct answer to complete each sentence. 1. The flower was (carved/ moulded/ cast/ given) out of a single piece of valuable wood. 2. In this town, they (make/ have/ mould/ cast) all the frames in steel. 3. She is skilled at (giving/ weaving/ doing/ carving) cloth. 4. If you like, I can (grow/ make/ embroider/ knit) flowers on the cushion covers for you. 5. It is true that you (knitted/ wove/ did/ carved) this woollen hat yourself? 6. The doll has been (embroidered/ cast/ woven/ moulded) out of clay.
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