<h3>
Answer: 4</h3>
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Explanation:
We're given the following

which means that we have a set of natural numbers between 30 and 56, excluding both endpoints, and the set of numbers are also multiples of 6.
So looking at the multiples of 6 that are between 30 and 56 leads us to
{30, 36, 42, 48, 54}
but we cross off 30 as we want x to be larger than that, so we get this updated final list
{36, 42, 48, 54}
There are four items in this final list so the cardinality of the set described is 4. The cardinality is just the number of items in a given set.
The range would be [-4, infinity) because range is the y-value. The lowest y-value is -4. The greatest y-value goes up to infinity.
And if you need an example this is the website I went to: http://www.mathsisfun.com/data/standard-deviation.html
Answer:
30 times i think i don't know i am doing lcm and gcf
Step-by-step explanation:
In order to find height (h), tan20 = h/26

Now for the left part of base (b1), where b2 = 26 and entire base (b) = b1+b2

So b = 13.03+26 = 39.03
Now Area (A) = 1/2bh = 1/2 (39.03)(9.46)
A = 184.59