Thanh Hoa is my hometown. It is a province located in the center of my country. 

I guess just like everyone else, I'm in love with this city's nature. It's a coastel city and my home is quite near the beach. Everyday, I can go to the seaside, enjoy the air and chat with my friends while having snacks.

Yes, definitely. My hometown is the best place to visit on a holiday as it has the best scenic views and a lot of places to roam around. Also, my hometown is kind of famous for its delicious food and shopping areas.

To be honest, I would say I like everything, but what I like the most may be its priviledge in natural landscapes. I mean my city is well - known for having incredible scenary everywhere from the beach to the east to green forest to the west.

In recent years, my city has really changed a lot and progressively developed day by day. Earlier, the roads were not properly constructed, so at that time, there were many misfortunes or road mishaps happening. But now, roads are reconstructed well in order to avoid such major accidents on the road.

thing

nè có ai đó giúp mình với!mai mình phải nộp rùi!

Gọi tuổi của Minh là x

=>Tuổi của Ninh là x+2

Tuổi của Lan là 1/2x

Theo đề, ta co: 1/2x+x+2+x=27

=>2,5x=25

=>x=10

vâng em cám ơn ạ

\(R_{tđ}=\dfrac{R_1\cdot R_2}{R_1+R_2}=\dfrac{24\cdot12}{24+12}=8\Omega\)

\(I=\dfrac{U}{R}=\dfrac{12}{8}=1,5A\)

\(P=\dfrac{U^2}{R}=\dfrac{12^2}{8}=18W\)

\(Q_{tỏa1}=A_1=U_1\cdot I_1\cdot t=12\cdot\dfrac{12}{24}\cdot1\cdot3600=21600J\)

\(Q_{tỏa2}=A_2=U_2\cdot I_2\cdot t=12\cdot\dfrac{12}{12}\cdot1\cdot3600=43200J\)

Bạn có thể giúp mình làm luôn câu c, d được không ạ

Số tiền Bình có là:

   105 000-27 000=78 000(đồng)

Số tiền Chi có là:

   105 000+36 000=141 000(đồng)

Trung bình mỗi bạn có số tiền là:

   105 000+78 000+141 000=...(đồng)

   Đáp số:.. đồng.

29576:24

123×45

1) Áp dụng định lí Pytago vào ΔABC vuông tại A, ta được:

\(BC^2=AB^2+AC^2\)

\(\Leftrightarrow BC^2=6^2+8^2=100\)

hay BC=10(cm)

Áp dụng hệ thức lượng trong tam giác vuông vào ΔABC vuông tại A có AH là đường cao ứng với cạnh huyền BC, ta được:

\(AH\cdot BC=AB\cdot AC\)

\(\Leftrightarrow AH\cdot10=6\cdot8=48\)

hay AH=4,8(cm)

lam ban voi toi va lam ban cua toi dung ko?