Unit 10 OUR HOUSE IN THE FUTURE
1 . What type of houses would ?
2. Where is it ?
3 . What appliances will your house have ?
4 . Do you want to ... ?
5 . What can some appliances do ?
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a) Vì \(\widehat{xOy}\) < \(\widehat{xOz}\) ( 30 độ < 120 độ ) => Tia \(Oy\) nằm giữa hai tia còn lại.
Vì tia \(Oy\) nằm giữa hai tia \(Ox\) và \(Oz\) nên
\(\widehat{yOz}\) + \(\widehat{xOy}\) = \(\widehat{xOz}\)
=> \(\widehat{yOz}\) = \(\widehat{xOz}\) − \(\widehat{xOy}\) = 120 độ - 30 độ = 90 độ
Vậy \(\widehat{yOz}\)= 90 độ
b) Vì \(Om\) là tia phân giác của góc \(\widehat{xOy}\) nên
\(\widehat{xOm}\) = \(\widehat{xOy}\) : 2 = 30 độ : 2 =15 độ
Vì \(On\) là tia phân giác của góc\(\widehat{yOz}\) nên
\(\widehat{xOn}\) = \(\widehat{xOz}\): 2 = 120 độ : 2 = 60 độ
Vì \(\widehat{xOm}\) và \(\widehat{xOn}\) củng nằm trên một nửa mặt phẳng chứa tia \(Ox\) và \(\widehat{xOm}\) < \(\widehat{xOn}\) => Tia \(Om\) nằm giữa hai tia \(On\) và \(Ox\)
- Ta có : \(\widehat{xOm}\) + \(\widehat{mOn}\) = \(\widehat{xOn}\)
=> \(\widehat{mOn}\) = \(\widehat{xOn}\) − \(\widehat{xOm}\) = 60 độ - 15 độ = 45 độ
Vậy \(\widehat{mOn}\) = 45 độ
Trên nửa mặt phẳng bờ chứa tia Ox,\(\widehat{xOy}< \widehat{xOz}\left(30^o< 120^o\right)\)
Do đó tia Oy nằm giữa Ox và Oz
Nên\(\widehat{xOy}+\widehat{yOz}=\widehat{xOz}\)
Hay\(30^o+\widehat{yOz}=120^o\)
\(\Rightarrow\widehat{yOz}=120^o-30^o=90^o\)
Vì tia Om là tia phân giác của góc yoz
\(\Rightarrow\widehat{yOm}=\widehat{mOz}=\frac{\widehat{yOz}}{2}=\frac{90^o}{2}=45^o\)
Tự giải tiếp nha,
Gợi ý, tính xOm, xong tính xOn, xog tính mOn
1.London is in England.
2.The summer is hot.
3.She drives very well.
4.They open the store at 8.00.
5.Linda is a very pretty girl.
6.I have Several jobs.
7.Water freezes at 0 degrees.
8.Water boils at 100 degrees.
9.My sister speaks English.
10.He haves a big apartment.
11.A triangle haves three corners.
12.My birthday is in June.
13.Books have pages.
14.Dogs is good friends.
15.I work hardly.
1.London____is___ (be) in England.
2.The summer___is not_____(be) hot.
3.She_____drivers_____(drive) very well.
4.They _____opens___(open) the store at 8.00
5.Linda____is_____(be) a very pretty girl.
6.I______haves____(have) Several jobs.
7.Water_________freezes____(freeze) at 0 degrees.
8.Water______boils______(boil) at 100 degrees.
9.My sister________speaks____(speak) English.
10.He _____have_______(have) a big apartment.
11.A triangle______have______(have) three corners.
12.My birthday_____is______(be) in June.
13.Books_______have_____(have) pages.
14.Dogs______is____(be) good friends.
15.I___works______(work) hard.
1. What would you to eat?
2. How does he go to work in the morning?
3. What color do you ?
4. What does he do?
5. What time does she get up in the morning?
1. what would you to eat ?
2. How does he go to work ?
3. Which Colour do you ?
4. What does he do?
5.What time does she get up in the morning ?
Số học sinh giỏi là: 40 x 20% = 8 (HS)
Số học sinh khá và t.b là:40 -8 = 32 (HS)
Ta có sơ đồ: (tự vẽ)
Số học sinh khá là: 32 : (5+3) x 5= 20 (HS)
Số học sinh trung bình là: 32 - 20= 12 (HS)
Đáp số: HS giỏi: 8 HS
HS khá: 20 HS
HS trung bình: 12 HS
Ta có: 20%= \(\frac{1}{5}\)
Số học sinh giỏi là:
40 . \(\frac{1}{5}\)= 8 (học sinh)
Tổng số học sinh khá và trung bình là:
40 - 8 = 32 (học sinh)
Ta có sơ đồ
Học sinh khá |----|----|----|----|----|
Học sinh TB |----|----|----|
Tổng số phần bằng nhau là:
5+ 3 = 8 (phần)
Số học sinh khá là:
32 : 8 . 5 = 20 (học sinh)
Số học sinh trung bình là:
32 : 8 . 3 =12 (học sinh)
Đáp số: Học sinh giỏi: 8 học sinh
Học sinh khá: 20 hoc sinh
Học sinh trung bình: 12 học sinh
_Hok tốt_
1. Linh/ parents/ proud/ him/ because/ he/ always/ get/ good marks.
=> Linh parents proud of him because he always get good marks.
2. We/ very interested/ play/ soccer/ when/ live/ countryside.
=> We are very interested playing soccer when we live in the countryside.
3. I/ not talk/ uncle/ since/ he/ buy/ new house/ city center.
=> I haven't talked uncle since he have bought new how in city center.
4. the Browns/ buy/ lot/ good/ because/ they/ go/ have/ party.
=> The Browns buy a lot of good food because they are go to have the party.
5. It/ only/ small car/ so/ there/ not/ enough room/ all/ us
=> It is only small car so there aren't enough room for all us.
Chưa chắc đã đúng hết :))
1. Linh's parents proud of him because he always gets good marks.
2. We were very interested in playing soccer when we lived in the countryside.
3. I have not talked with my uncle since he bought the new house in the city center.
4. The Browns buys a lot of goods because they are going to have a party.
5. It is only a small car so there is not enough room for all of us.
K CHO MIK NHA
Ta có :
\(\frac{50}{111}>\frac{50}{200}\)
\(\frac{50}{112}>\frac{50}{200}\)
\(\frac{50}{113}>\frac{50}{200}\)
\(\frac{50}{114}>\frac{50}{200}\)
\(\Rightarrow A>\frac{50}{200}+\frac{50}{200}+\frac{50}{200}+\frac{50}{200}\)hay \(A>\frac{50}{200}.4\left(1\right)\)
Mặt khác :
\(\frac{50}{111}< \frac{50}{100}\)
\(\frac{50}{112}< \frac{50}{100}\)
\(\frac{50}{113}< \frac{50}{100}\)
\(\frac{50}{114}< \frac{50}{100}\)
\(\Rightarrow A< \frac{50}{100}+\frac{50}{100}+\frac{50}{100}+\frac{50}{100}\)hay \(A< \frac{50}{100}.4\left(2\right)\)
Từ \(\left(1\right)\)và \(\left(2\right)\Rightarrow1< A< 2\left(đpcm\right)\)
1 . What type of houses would ?
=>It's a UFO
2. Where is it ?
=>It's in space
3 . What appliances will your house have ?
=>There three hi-tech robot, an automa diswasher and so on...
4 . Do you want to ... ?(Ko hiểu ... là gì)
5 . What can some appliances do ?
=>Hi-tech robots play sports with me and do the housework, automa dishwasher help me wash and dry dishes,....so on