Using it's concept, the mean of data usage is of: 3.275.
<h3>What is the mean?</h3>
The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.
In this problem, the 8 observations are given by:
3.6 1.8 1.5 3.5 3.1 5.4 2.8 4.5
Hence the mean is given by:
M = (3.6 + 1.8 + 1.5 + 3.5 + 3.1 + 5.4 + 2.8 + 4.5)/8 = 3.275.
More can be learned about the mean of a data-set at brainly.com/question/24628525
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Answer:
1/27
Step-by-step explanation:
3^-3 is unclear; I'm assuming you meant 3^(-3), which is the same as
1 1
-------- = --------
3^3 27
Domain: f (x) is the set of all values for which the function is defined
range: the set of all values that f takes
hope this helps
Answer:
Cos <B = 3/5
Step-by-step explanation:
Find the diagram attached
From the diagram, we have;
Hypotenuse BC = 80
Opposite to <B = AC =64
Adjacent AB = 48
According to SOH CAH TOA identity
Cos theta = adjacent/hypotenuse
Cos<B = AB/BC
Cos <B = 48/80
Express in its simplest form
Cos <B = (16*3)/(16*5)
Cos <B = 3/5
Hence the ratio of cos<B in its simplest form is 3/5