Hmm đề bài sao đy , là sắp xếp hay sao đy nhỉ

a: Ta có: \(P=\left(\dfrac{a\sqrt{a}-1}{a-\sqrt{a}}-\dfrac{a\sqrt{a}+1}{a+\sqrt{a}}\right):\dfrac{a+2}{a-2}\)

\(=\dfrac{a+\sqrt{a}+1-a+\sqrt{a}-1}{\sqrt{a}}\cdot\dfrac{a-2}{a+2}\)

\(=\dfrac{2a-4}{a+2}\)

\(\left(\dfrac{1}{4}+35\%+0,65+75\%\right)\times\left(1\dfrac{6}{9}+4\dfrac{8}{24}\right)\)

\(=\left(0,25+0,35+0,65+0,75\right)\times\left(1+\dfrac{2}{3}+4+\dfrac{1}{3}\right)\)

\(=2\times6\)

\(=12\)

\(\left(\dfrac{1}{4}+35\%+0,65+75\%\right)\times\left(1\dfrac{6}{9}+4\dfrac{8}{24}\right)\)

\(=\left(\dfrac{1}{4}+\dfrac{7}{20}+\dfrac{65}{100}+\dfrac{3}{4}\right)\times\left(\dfrac{15}{9}+\dfrac{13}{3}\right)\)

\(=\left(\dfrac{5}{20}+\dfrac{7}{20}+\dfrac{13}{20}+\dfrac{15}{20}\right)\times6\)

\(=\left[\left(\dfrac{15}{20}+\dfrac{5}{20}\right)+\left(\dfrac{7}{20}+\dfrac{13}{20}\right)\right]\times6\)

\(=2\times6\)

\(=12\)

12,12 x 7,5 + 12,12 : 2 + 12,12 + 12,12

= 12,12 x 7,5 + 12,12 x 0,5 + 12,12 x 1 + 12,12 x 1

= 12,12 x (7,5 + 0,5 + 1 + 1)

= 12,12 x 10

= 121,2

121,2 nha bạn

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giúp mình với

nếu bạn về quê hương vĩnh bảo của mình có nghề trồng thuốc lào và nơi đào tạo các quan trạng có trạng trình nguyễn bỉnh khiêm

Vietnam is a tropical country rich in beauty and hospitality. Vietnam has a tropical monsoon climate and it has given Vietnam resource rich biological diversity. Vietnam is a center of endemism in the world with 87 parks and nature conservation, including prominent representatives of 11 National Park for most types of landscapes and ecosystems. 
The establishment of the National Park not only maintained its determination to protect the biodiversity of Vietnam, but also creating eco-tourist destination attracting visitors that any love nature and want to period of time living there, but sociable, close to beautiful nature. 
Coming to the National Park, you not only look at the vast landscape that has been spectacular moments interesting and useful to understanding animal population is very diverse and rich with many kinds of precious rare and unique. 
Vietnam National Park are always waiting to discover the footsteps of visitors.

Oa, có cơ hội mình sẽ về quê hương bạn

1D

2C

3B

4D

5B

6C

7A

8B

9C

10A

11A

12D

Ta có: 25 kg 50 g = 25,05 kg

                  Đáp số: 25,05 kg

Chúc bạn học tốt  Phạm Thị Hoài Thương

=25,05

25 kg 50 g = 25,05 kg nha!