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1 tháng 11 2018
\(A=x^2-4x+3+11\)
\(A=x^2-4x+14\)
\(A=x^2-4x+4+10\)
\(A=\left(x-2\right)^2+10\ge10\)
Dấu = xảy ra khi \(x-2=0\Leftrightarrow x=2\)
vậy \(A_{min}=10\) khi x =2
TN
29 tháng 8 2021
7. How do most….children…….feel when they go to see a dentist? (CHILD)II
III. Fill in the blanks with suitable words
1.I would like to have a ………glass………… of beer. ( 5 letters )
2. May I have a ………bunch……… of bananas please? ( 5 letters )
3. I would like to have a ………bowl……… of noodles. ( 4 letters)
4. Would you like a ………slice……… of lemon in your coke? ( 5 letters)
5. May I have a ………piece……… of cake please? ( 5 letters)
6. Please pass me that ………glass……… of milk. ( 6 letters)
7. May I have a ………cup………… of soda please? ( 3 letters)
8. Can you get a me a ………glass……… of apple juice please? ( 5 letters)
9. Can you open that …………bottle………… of wine please? ( 6 letters )
10. Lilian is feeling sick, lets get her a …………basket……… of fruits. ( 6 letters)
11. May I have a …………cup……… of coffee please? ( 3 letters)
12. I want a ………bar……… of chocolate. ( 3 letters)
(P/s: tick mình nha)
1 There are 73 cookies left
2 There are 35 x 7 = 245 rooms
2. 70 - 2 + 5 = 73 (cookies)
3. 7 x 35 = 245 (rooms)