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0,121 km2 = 21,1 ha = 1211000 m2

19 tháng 12 2023

7ha 14m2

=7,0014 ha

432,8ha 

=4,328 km2

 

19 tháng 12 2023

7ha 14m2 = 7,0014ha

432,8ha = 4,328km2

24 tháng 7 2017

a)1,5735ha
b)4,28km2
c)0,0892ha
d)0,14km2

24 tháng 7 2017

A, 15735 m2 = 1,5735 ha

B, 428 ha = 4,28 km2

C, 892 m2 = 0,0892 ha

D, 14 ha = 0,14 km2

26 tháng 11 2021

26dam8m2

200ha

30000ha ( ha là viết tắt của hm)

26 tháng 11 2021

2608 m2 = 26 dam2 8 m2

2 km2 = 200 ha

30 000 hm2 = 3 ha

\(12m^26dm^2=12,06m^2\)

\(23ha512m^2=23.0512ha\)

\(5.6km^2=560ha\)

\(21ha=0.21km^2\)

\(7km^2241m^2=7000241m^2=700.0241ha\)

11 tháng 12 2016

1367,54m2 = 13,6754ha

493,7dam2 = 4,937ha

678,106hm2 = 678,106ha

6,78km2 = 678ha

15 tháng 3 2018

605 ha

15 tháng 3 2018

\(6,5km^2=650ha\)

20,8+32,91-7,65:1,5

= 20,8+32,91-5,1

= 53,71-5,1

= 48,61

1 tháng 8 2021

1 Where are the picture which were on this wall

2 My father is the person who has great influence on my behavior

3 Do you like the flowers which I bought this morning?

4 All of us are interested in the man who is teaching us PE

5 What's the name of the girl who lent you this book?

6 I don't know the man who wrote lots of good books

7 The girl who has worked here for 5 days will leave me the message

8 All the man who are businessman attended the meeting

9 Do you know the lady who is presenting the topic

10 I haven't read the novel which was written by Nam cao

16 tháng 9 2023

\(a,2\left|3x-1\right|+1=5\\ \Rightarrow2\left|3x-1\right|=5-1\\ \Rightarrow2\left|3x-1\right|=4\\ \Rightarrow\left|3x-1\right|=4:2\\ \Rightarrow\left|3x-1\right|=2\\ \Rightarrow\left[{}\begin{matrix}3x-1=2\\3x-1=-2\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}3x=3\\3x=-1\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=1\\x=-\dfrac{1}{3}\end{matrix}\right.\)

\(b,\left|\dfrac{x}{2}-1\right|=3\\ \Rightarrow\left[{}\begin{matrix}\dfrac{x}{2}-1=3\\\dfrac{x}{2}-1=-3\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}\dfrac{x}{2}=4\\\dfrac{x}{2}=-2\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=8\\x=-4\end{matrix}\right.\)

\(c,\left|-x+\dfrac{2}{5}\right|+\dfrac{1}{2}=3,5\\ \Rightarrow\left|-x+\dfrac{2}{5}\right|=3,5-\dfrac{1}{2}\\ \Rightarrow\left|-x+\dfrac{2}{5}\right|=3\\ \Rightarrow\left[{}\begin{matrix}-x+\dfrac{2}{5}=3\\-x+\dfrac{2}{5}=-3\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}-x=\dfrac{13}{5}\\-x=-\dfrac{17}{5}\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=-\dfrac{13}{5}\\x=\dfrac{17}{5}\end{matrix}\right.\)

\(d,\left|x-\dfrac{1}{3}\right|=2\dfrac{3}{5}\\ \Rightarrow\left|x-\dfrac{1}{3}\right|=\dfrac{13}{5}\\ \Rightarrow\left[{}\begin{matrix}x-\dfrac{1}{3}=\dfrac{13}{5}\\x-\dfrac{1}{3}=-\dfrac{13}{5}\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=\dfrac{13}{5}+\dfrac{1}{3}\\x=-\dfrac{13}{5}+\dfrac{1}{3}\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}\dfrac{44}{15}\\x=-\dfrac{34}{15}\end{matrix}\right.\)