Tính biểu thức sau:
0,35 x 16 : 0,28 - ( 2,34 + 1,17 : 4,5 ) : 0,25
giúp mik giải toán này nhanh vs ạk mik cần ấp...
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Tính biểu thức sau:
0,35 x 16 : 0,28 - ( 2,34 + 1,17 : 4,5 ) : 0,25
giúp mik giải toán này nhanh vs ạk mik cần ấp ạk
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giúp mik vs ạk, mik cần gấp
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4 tháng 5 2021
Ảnh 1:
1. I stayed up late, so I am tired
2. I did not pass my exam although I tried my best
3. My homeland is the best beautiful place in the world
4. Don't tease the dog
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CTVVIP
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28 I haven't gone to HCM City for 2 years
29 We have lived in My Tho for ten years
30 Lan didn't go to school last week
31 He was at home yesterday
4 tháng 5 2021
Question8:
29. We live in Phu Tho about ten years.
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32. He was at home yesterday.
KV
14 tháng 8 2023
0,35 × 135 - 35% × 35
= 0,35 × 135 - 0,35 × 35
= 0,35 × (135 - 35)
= 0,35 × 100
= 35
H9
HT.Phong (9A5)
CTVHS
14 tháng 8 2023
\(0,35\times135-35\%\times35\)
\(=0,35\times135-0,35\times35\)
\(=0,35\times\left(135-35\right)\)
\(=0,35\times100\)
\(=35\)
14 tháng 8 2023
\(0,35x135-35\%x35=0,35x\left(100+35\right)-0,35x35=0,35x100+0,35x35-0,35x35=35\)
H9
HT.Phong (9A5)
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6 tháng 7 2023
Bài 3:
a) \(\left(-\dfrac{2}{3}\right)^2\cdot\left(\dfrac{2}{3}\right)^5\)
\(=\left(\dfrac{2}{3}\right)^2\cdot\left(\dfrac{2}{3}\right)^5\)
\(=\left(\dfrac{2}{3}\right)^{2+5}\)
\(=\left(\dfrac{2}{3}\right)^7\)
b) \(\left(-\dfrac{1}{2}\right)^5\cdot\left(-\dfrac{1}{2}\right)^3\)
\(=\left(-\dfrac{1}{2}\right)^{5+3}\)
\(=\left(-\dfrac{1}{2}\right)^8\)
\(=\left(\dfrac{1}{2}\right)^8\)
c) \(\left(\dfrac{6}{5}\right)^7\cdot\left(-\dfrac{6}{5}\right)^4\)
\(=\left(\dfrac{6}{5}\right)^7\cdot\left(\dfrac{6}{5}\right)^4\)
\(=\left(\dfrac{6}{5}\right)^{7+4}\)
\(=\left(\dfrac{6}{5}\right)^{11}\)
H9
HT.Phong (9A5)
CTVHS
6 tháng 7 2023
Bài 4:
a) \(\left(\dfrac{3}{7}\right)^4:\left(-\dfrac{3}{7}\right)^2\)
\(=\left(\dfrac{3}{7}\right)^4\cdot\left(\dfrac{3}{7}\right)^2\)
\(=\left(\dfrac{3}{7}\right)^{4+2}\)
\(=\left(\dfrac{3}{7}\right)^6\)
b) \(\left(\dfrac{5}{9}\right)^{11}:\left(\dfrac{5}{9}\right)^7\)
\(=\left(\dfrac{5}{9}\right)^{11-7}\)
\(=\left(\dfrac{5}{9}\right)^4\)
c) \(\left(\dfrac{2}{13}\right)^7:\left(\dfrac{2}{13}\right)^5\)
\(=\left(\dfrac{2}{13}\right)^{7-5}\)
\(=\left(\dfrac{2}{13}\right)^2\)
NT
1
R
3 tháng 6 2020
a) \(\frac{19}{27}+\frac{9}{7}+\frac{6}{27}+\frac{5}{7}+\frac{2}{27}\)
\(=\left(\frac{19}{27}+\frac{6}{27}+\frac{2}{27}\right)+\left(\frac{9}{7}+\frac{5}{7}\right)\)
\(=1+2=3\)
b) \(\frac{2}{7}+\frac{27}{48}+\frac{7}{16}+\frac{45}{63}\)
\(=\frac{2}{7}+\frac{9}{16}+\frac{7}{16}+\frac{5}{7}\)
\(=\left(\frac{2}{7}+\frac{5}{7}\right)+\left(\frac{9}{16}+\frac{7}{16}\right)\)
\(=1+1=2\)
`0,35xx16:0,28-(2,34+1,17:4,5):0,25`
`=5,6:0,28-(2,34+0,26):0,25`
`=20-2,6:0,25`
`=20-10,4=9,6`