A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample
Answer: We are given the mean of 8 scores is 12.
We are required to find the sum of these 8 observation's, 
We know that:
We are given:
Hence, sum of 8 observation's, 
Draw a picture of a building and a one mile (or 5280 feet) distance to a point from the base of the building.
The angle of elevation is given as 11° and we want the height of the building or x.
tan(11°) = x/5280
5280 tan(11°) = x
1026.3 feet = x
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Answer:
3 pi.
Step-by-step explanation:
<h3>
Answer: y = 6-1.5x</h3>
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Work Shown:
x = number of hours
1.5x = number of pages written after x hours
y = 6-1.5x = number of pages left after x hours
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In other words, if Leo can write at a pace of 1.5 pages per hour, and works for x hours, then he has written 1.5x pages so far. The difference of this with 6 will tell us what is left over. So the expression 6-1.5x is the amount of pages left, which is the value of y.
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An example:
x = 2 so 1.5x = 1.5*2 = 3
At the 2 hour mark, Leo has written 3 pages. He has 6-1.5x = 6-1.5*2 = 6-3 = 3 pages left.
Answer:
Please read the enswer below
Step-by-step explanation:
The quotient-remainder theorem establishes that given an integer n, there are unique integers d and r, with 0≤r<d, and such that:
q: the quotient
d: the remainder
d: divisor = 2
By the quotient-remainder theorem with divisor 2, you have:
n = 2q
n = 2q + 1
Then, for both cases you have:
(the square of an integer with divisor 2 is 4k)
with 
but 2q + 1 = n
where you have taken 
(the product 2qn is another integer)
