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I just want to check this is correct, I'm not 100% sure.
= {1, 2, 3, .. , 7}
So, for instance, the permutation notation (127) can be broken down as f(1) = 2, f(2) = 7 and f(7) = 1. I assume this means then: (2, 7, 3, 4, 5, 6, 1) if you write it in full.
Does it therefore mean to say (127) * (12) where * is function composition is the following:
(12) = (2, 1, 3, 4, 5, 6, 7)
then,
(127) = (7, 2, 3, 4, 5, 6, 1)
which could be written (17) with regards to the original permutation? 86.146.141.180 ( talk) 10:31, 11 May 2008 (UTC)
I've read through the book but its not very helpful..
Find the equation of line with the gradient -6 that passes through the point (1,5)
Now it says use the formula Y-Y1=M(X-X1) [Y1 and X1 Being the points supplied, M being the Gradient(AKA Slope).
So Logically:
Y-5=-6(X-1)
Y-5=-6x+6 [Expand]
Y-5+5=-6x+6+5 [Make Y the subject]
Y=-6x+11
However the book says 6x+Y=11 Why? (Perhaps it is for this reason, a little earlier in the book i read something about putting it in gradient intercept form or general form, which ever you prefer)
Find the equation of the line that passes through (3,4) and (-2,8)
where
So
This is also not correct. Any ideas?
the number of squares that are crossed by the diagonal of a rectangular field covered by m by n squares each of unit squares where m and n are relatively prime is given by ( m+n ) - 1 ... could you please explain why is it so 117.200.1.99 ( talk) 15:34, 11 May 2008 (UTC)
How do I find the stationary points of a function with two variables???
f(x,y) = 2(x^3) +x(y^2) + 5(x^2) +y^2 Mr Beans Backside ( talk) 17:29, 11 May 2008 (UTC)
An isosceles triangle has base angles which measure 48 degrees. the length of the base is 16 cm. find the length of the altitude of the triangle to the nearest tenth. Mr Beans Backside ( talk) 17:30, 11 May 2008 (UTC)
Split it in half to get two right triangles. Think about just one of the two. The base will be 24 rather than 48 since the base has been split in half. Michael Hardy ( talk) 23:00, 11 May 2008 (UTC)
Hi, basically my teacher said that frequency distributions can either be symmetricaql or skewed, have one peak or many pearks, and or be uniform? I don't really understand what she means by uniform so can somebody explain it to me simply please? Thanks very much. 79.77.201.36 ( talk) 21:46, 11 May 2008 (UTC)
Mathematics desk | ||
---|---|---|
< May 10 | << Apr | May | Jun >> | May 12 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
I just want to check this is correct, I'm not 100% sure.
= {1, 2, 3, .. , 7}
So, for instance, the permutation notation (127) can be broken down as f(1) = 2, f(2) = 7 and f(7) = 1. I assume this means then: (2, 7, 3, 4, 5, 6, 1) if you write it in full.
Does it therefore mean to say (127) * (12) where * is function composition is the following:
(12) = (2, 1, 3, 4, 5, 6, 7)
then,
(127) = (7, 2, 3, 4, 5, 6, 1)
which could be written (17) with regards to the original permutation? 86.146.141.180 ( talk) 10:31, 11 May 2008 (UTC)
I've read through the book but its not very helpful..
Find the equation of line with the gradient -6 that passes through the point (1,5)
Now it says use the formula Y-Y1=M(X-X1) [Y1 and X1 Being the points supplied, M being the Gradient(AKA Slope).
So Logically:
Y-5=-6(X-1)
Y-5=-6x+6 [Expand]
Y-5+5=-6x+6+5 [Make Y the subject]
Y=-6x+11
However the book says 6x+Y=11 Why? (Perhaps it is for this reason, a little earlier in the book i read something about putting it in gradient intercept form or general form, which ever you prefer)
Find the equation of the line that passes through (3,4) and (-2,8)
where
So
This is also not correct. Any ideas?
the number of squares that are crossed by the diagonal of a rectangular field covered by m by n squares each of unit squares where m and n are relatively prime is given by ( m+n ) - 1 ... could you please explain why is it so 117.200.1.99 ( talk) 15:34, 11 May 2008 (UTC)
How do I find the stationary points of a function with two variables???
f(x,y) = 2(x^3) +x(y^2) + 5(x^2) +y^2 Mr Beans Backside ( talk) 17:29, 11 May 2008 (UTC)
An isosceles triangle has base angles which measure 48 degrees. the length of the base is 16 cm. find the length of the altitude of the triangle to the nearest tenth. Mr Beans Backside ( talk) 17:30, 11 May 2008 (UTC)
Split it in half to get two right triangles. Think about just one of the two. The base will be 24 rather than 48 since the base has been split in half. Michael Hardy ( talk) 23:00, 11 May 2008 (UTC)
Hi, basically my teacher said that frequency distributions can either be symmetricaql or skewed, have one peak or many pearks, and or be uniform? I don't really understand what she means by uniform so can somebody explain it to me simply please? Thanks very much. 79.77.201.36 ( talk) 21:46, 11 May 2008 (UTC)