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le huyen linh
4 hour ago (08:54)
jimin bts cute 4 hour ago (09:01)
Two corners \(xOy\) and \(yOy'\) compensated \(\widehat{xOy}+\widehat{yOy'}=180^o\).
Imagine: \(\widehat{yOy'}=180^o\widehat{xOy}=180^o120^o=60^o\).
So \(\widehat{yOy'}=60^o\)
le huyen linh selected this answer.
Huỳnh Anh Phương
23 hour ago (14:13)
Phan Minh Anh 13 hour ago (00:06)
The area of the shaded region in the picture is:
24x48=1152 ( m2 )

jimin bts cute 4 hour ago (08:33)
The area of the shaded region is:
\(48\times24=1152\left(m^2\right)\)
Answer: \(1152m^2\)
mk ko nhanh như bn khác nhưng hãy k mk! *_<

Phan Minh Anh 13 hour ago (00:04)
Diện tích của khu vực bóng mờ là:
24x48=1152 (m2)
Đáp số: 1152 m2.
Huỳnh Anh Phương
Yesterday at 13:00jimin bts cute
Yesterday at 01:31jimin bts cute
Yesterday at 01:29FA Liên Quân Garena
08/01/2018 at 22:17
Alone 09/01/2018 at 15:34
We have:\(1\dfrac{1}{1+2+......+n}=1\dfrac{1}{\dfrac{n\left(n+1\right)}{2}}=1\dfrac{2}{n\left(n+1\right)}=\dfrac{n\left(n+1\right)2}{n\left(n+1\right)}=\dfrac{n^2+n2}{n\left(n+1\right)}\)
\(=\dfrac{n^2n+2n2}{n\left(n+1\right)}=\dfrac{n\left(n1\right)+2\left(n1\right)}{n\left(n+1\right)}=\dfrac{\left(n+2\right)\left(n1\right)}{n\left(n+1\right)}\)
Instead in the expression we have:
A=\(\dfrac{4.1}{2.3}+\dfrac{5.2}{3.4}+.......+\dfrac{1988.1985}{1986.1987}\)
\(=\dfrac{1.2....1985}{3.4....1987}.\dfrac{4.5.....1988}{2.3.....1986}\)
\(=\dfrac{1.2}{1986.1987}.\dfrac{1987.1988}{2.3}=\dfrac{1988}{3.1986}=\dfrac{1988}{5958}=\dfrac{994}{2979}\)
P/s:A is the expression
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Quoc Tran Anh Le Coodinator
14/08 at 02:36
Lê Anh Duy 14/08 at 03:48
Q = P × 5/4
\(\Rightarrow\) 4Q × 5P = 5P × 5P = (5P)^{2}
Choose d
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Lê Anh Duy 14/08 at 03:48
Sorry, choose c
Quoc Tran Anh Le Coodinator
14/08 at 02:34
Lê Anh Duy 14/08 at 03:45
A + B = Z
Z + P = T
\(\Rightarrow\)A + Z + P + B = Z + T
\(\Rightarrow\)A + 8 = T or A = T  8
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Quoc Tran Anh Le Coodinator
14/08 at 02:33Quoc Tran Anh Le Coodinator
14/08 at 02:33Quoc Tran Anh Le Coodinator
14/08 at 02:32Quoc Tran Anh Le Coodinator
14/08 at 02:31Quoc Tran Anh Le Coodinator
14/08 at 02:31
Mạnh Khôi 14/08 at 14:04
Change : \(1\dfrac{1}{2}=\dfrac{3}{2}\)
Call that number is a
We have :
\(a+\dfrac{3}{2}=\dfrac{3}{2}a\)
\(\Rightarrow\dfrac{3}{2}=\dfrac{1}{2}a\)
\(\Rightarrow a=\dfrac{3}{2}:\dfrac{1}{2}\)
\(\Rightarrow a=3\)
So that number is 3
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Quoc Tran Anh Le Coodinator
14/08 at 02:30
Lê Anh Duy 14/08 at 03:51
Four times the number is four
So the number 1 is the correct answer
Quoc Tran Anh Le selected this answer.
Quoc Tran Anh Le Coodinator
14/08 at 02:29Quoc Tran Anh Le Coodinator
14/08 at 02:29Quoc Tran Anh Le Coodinator
14/08 at 02:28Quoc Tran Anh Le Coodinator
14/08 at 02:27
Mạnh Khôi 14/08 at 15:12
C . Moles are the slowest and largest
Quoc Tran Anh Le selected this answer.