
Các bạn làm nhé mình cần gấp.Ty các bạn rất nhìu
:)))))))))
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a: Diện tích mỗi khu vực 16m50 là:
\(165\cdot400=66000\left(dm^2\right)=660\left(m^2\right)\)
Số tiền phải trả là:
\(660\cdot2\cdot350000=660\cdot700000=462000000\) (đồng)
Me: What are you doing on Sunday afternoon?
Friend: I’m not doing anything. / Nothing much.
Me: Do you want to see a movie with me?
Friend: Sure. What movie is it?
Me: It's "The Journey to Mars".
Friend: What time does it start?
Me: It starts at 4 p.m.
Friend: Great! See you then.
Me: What are you doing on Saturday morning?
Friend: I’m free.
Me: Would you like to go to the movies with me?
Friend: Sounds good. What movie do you want to watch?
Me: How about "The Forest Book"?
Friend: What time is it on?
Me: It's at 10 a.m.
Friend: OK, let's meet at the cinema at 9:45.
1 create $\rightarrow$ c. energy (tạo ra năng lượng)
2 drive $\rightarrow$ a. machinery (vận hành máy móc)
3 generate $\rightarrow$ e. electricity (phát/tạo ra điện)
4 turn $\rightarrow$ b. turbines (quay tua-bin)
5 heat $\rightarrow$ d. houses (sưởi ấm nhà cửa)
b
1 How many types of energy sources are mentioned in the text? What are they?
$\rightarrow$ Two types of energy sources are mentioned. They are renewable and non-renewable energy sources. (hoặc kể tên cụ thể: fossil fuels/coal/oil, hydro power, nuclear power, wind power, solar power)
2 What are the disadvantages of hydro and nuclear power?
$\rightarrow$ Hydro power is expensive to build dams, and nuclear power can be very dangerous.
3 Why do you think the wind and the sun are called alternative sources of energy?
$\rightarrow$ Because they are clean, renewable, and can be used instead of non-renewable sources (fossil fuels).
4 What types of energy does Viet Nam use most?
$\rightarrow$ Viet Nam uses hydro power and fossil fuels (coal, gas, oil) most.
5 What does the professor think Viet Nam will use more in the future?
$\rightarrow$ He thinks Viet Nam will use more renewable energy sources like solar and wind power in the future.
Bài 6:
a: Ta có: \(5^{6x+2}=25^{2x+8}\)
\(\Leftrightarrow6x+2=4x+16\)
hay x=7
b: Ta có: \(2^x+2^{x+3}=144\)
\(\Leftrightarrow2^x=16\)
hay x=4