2,5 m2

8,0025m2

5,039 tấn

0,025 km² = 25 000 m²

8 m² 25 cm² = 8,0025 m²

\(1\dfrac{3}{10}\) giờ = 78 phút

5 tấn 39kg = 5,039 tấn

câu đầu phải đổi ra `cm^2` chứ nhỉ

`20000dm^2=20000xx100=2000000cm^2`

`3000000cm^2=3000000:100=30000dm^2`

20000 dm² = 200 cm²                      3000000 cm² = 30000 dm² 

máy tính hay tv đấy 

Máy tính như hacker í

\(\dfrac{4}{8}km^2=\dfrac{1}{2}km^2=\dfrac{1}{2}\times1000000=500000m^2\)

500000m

24 - 16(x - 1/2) = 23

=> 16(x - 1/2) = 24 - 23

=> 16(x - 1/2) = 1

=> x - 1/2 = 1/16

=> x = 1/16 + 1/2

=> x = 9/16

\(24-16(x-\frac{1}{2})=23\)

\(16(x-\frac{1}{2})=24-23\)

\(16(x-\frac{1}{2})=1\)

\(x-\frac{1}{2}=\frac{1}{16}\)

\(x=\frac{1}{16}+\frac{1}{2}\)

\(x=\frac{9}{16}\)

Vậy số thực x cần tìm là \(\frac{9}{16}\)

Chúc bạn hok tốt ~

I am sorry, I can’t help you.” Peter said to me.

A.   Peter promised to help me.                          B. Peter refused to help me.                   

C. Peter asked me for help.                               D. I couldn’t help Peter.

To make Peter surprised, we _______ and when he comes, we ________.

A. are going to hide / will jump out and shout             B. will hide / are jumping out and shouting

C. are hiding / are going to jump out and shout          D. are hiding / are jumping out and shouting

So sánh:\(10^{10}\) và \(48.50^5\)

Ta có:

\(10^{10}=10^{2.5}=\left(10^2\right)^5=100^5=\left(2.50\right)^5=2^5.50^5=32.50^5\)

Vì \(32.50^5< 48.50^5\)

\(\Rightarrow10^{10}< 48.50^5\)

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