Take the average (mean) of the coordinates of each end of the line segment.
I did see this. I don't know that I have an explanation as such though! It's just another series that converges to e (in the limit as n tends to infinity the (1 + 1/n)^(1/2) term tends to 1). The expression (1 + 1/n)^n starts off as a poor approximation to e for small values of n, and the (1 + 1/n)^(1/2) term moves it in the right direction, while gradually reducing towards 1 itself as n gets bigger.
Havw a look at https://en.wikipedia.org/wiki/Spearman%27s_rank_correlation_coefficient and https://en.wikipedia.org/wiki/Chi-squared_test
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I think there are 105 ways of pairing: (7*5*3 = 105)
The figure below illustrates the pattern (though I haven't filled it in completely)
w=93 log10 d +65
Subtract 65 from both sides and divide the result by 93
(w - 65)/93 = log10d (I've assumed you mean the 10 to indicate it is log to the base 10)
Raise both sides to the power 10:
d = 10^[(w-65)/93]
"what is a googol divided into two"
\(5\times10^{99}\)
Total length = 2*(50 + 62) meters
Cost = $2*(50 + 62)*47.75
Look at https://web2.0calc.com/questions/please-help-me-alan#r1
See if this helps:
The y-intercept is the value of y when x = 0.
Axis of symmetry means if you reflect the image about that axis you get the same thing. Both the following graphs have an axis of symmetry at x = 0.
+33667 
