<h3>What is conventional theory of the formation of the galaxy ?</h3>
The conventional theory of the formation of the galaxy can be regarded as one that stressed that the formation of milky way was done relatively short time some million years ago.
And this was when spherical cloud of gas collapsed as a result of pressure the particular gravity which was surrounded by a halo.
Therefore, formation of the galaxy was recorded to occur roughly 12 to 13 billion years ago .
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The justification of the third step in her proof of the property of logarithms is; 
; Power rule of exponents
<h3>What are properties of Logarithms?</h3>
From the full question, the second step stopped at;
Now, according to Power Rule for Exponents we know that (a^m)ⁿ = a^(m*n). That means that to raise a number with an exponent to a power, we will multiply the exponent times the power.
Thus, will give us using power rule of exponents
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Two. Sheep have hooves; dogs have paws; only people have feet.
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3.5% of the sample means fall above 1.06 cm.
<h3>Z score</h3>
z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:
From the normal distribution table:
P(z > z*) = 3.5%
1 - P(z < z*) = 3.5%
P(z < z*) = 96.5%
z* = 1.81
Using the z score formula:
3.5% of the sample means fall above 1.06 cm.
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