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ANTONII [103]
3 years ago
5

Help Me with theses four questions please ty

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
5 0
1. 135.4896pi m^2
2. 39.69pi cm^2
3.1017 mm^2
4.225pi cm^2

The formula for these problems is 
kondor19780726 [428]3 years ago
4 0
1. 135.4896pi m^2
2. 39.69pi cm^2
3.1017 mm^2
4.225pi cm^2

The formula for these problems is A= \pi r^{2}

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Empirical rule establishes, for a  normal distribution with mean μ and σ as standard deviation:

In interval   μ  ±  σ    or   ( μ  +  σ ;  μ  -  σ) we should find 68.27 % of all values of the population, and by simmetry 68.27/2 = 34,14 % should be over the mean and the other half would  be values below the mean

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