Answer:-2/39
Step-by-step explanation:
N(N ∩ S ∩ K) = 10
n(ξ) = 250
n(S ∪ K) = 15 - 10 = 5
n(N ∪ S) = 20 - 10 = 10
n(N ∪ K) = 30 - 10 = 20
n(S) = 50 - 10 - 5 - 10 = 25
n(K) = 55 - 20 - 5 - 10 = 20
n(N) = 100 - 10 - 20 - 10 = 60
n(N ∪ S ∪ K) = 10 + 5 + 10 + 20 + 25 + 20 + 60 = 150
Therefore, n(N ∪ S ∪ K)' = 250 - 150 = 100
Therefore, 100 million people do not read any of the three papers.
Answer:
![A.-1\frac{1}{7}](https://tex.z-dn.net/?f=A.-1%5Cfrac%7B1%7D%7B7%7D)
Step-by-step explanation:
![Well, there\ is\ a\ simple\ way\ to\ approach\ it.\\-9\frac{2}{7} -(-10\frac{3}{7})\\-9\frac{2}{7} +10\frac{3}{7}\\Separate\ out\ the\ integer\ terms\ and\ the\ fraction\ terms.\\Hence,\\-9+10+\frac{2}{7}+ \frac{-3}{7}\\=1+\frac{2-3}{7} \\=1\frac{-1}{7} \\=-1\frac{1}{7}](https://tex.z-dn.net/?f=Well%2C%20there%5C%20is%5C%20a%5C%20simple%5C%20way%5C%20to%5C%20approach%5C%20it.%5C%5C-9%5Cfrac%7B2%7D%7B7%7D%20-%28-10%5Cfrac%7B3%7D%7B7%7D%29%5C%5C-9%5Cfrac%7B2%7D%7B7%7D%20%2B10%5Cfrac%7B3%7D%7B7%7D%5C%5CSeparate%5C%20out%5C%20the%5C%20integer%5C%20terms%5C%20and%5C%20the%5C%20fraction%5C%20terms.%5C%5CHence%2C%5C%5C-9%2B10%2B%5Cfrac%7B2%7D%7B7%7D%2B%20%5Cfrac%7B-3%7D%7B7%7D%5C%5C%3D1%2B%5Cfrac%7B2-3%7D%7B7%7D%20%5C%5C%3D1%5Cfrac%7B-1%7D%7B7%7D%20%5C%5C%3D-1%5Cfrac%7B1%7D%7B7%7D)
Well, let's put all those words into numbers. 3 to the power of 4 is
![3^{4}](https://tex.z-dn.net/?f=%203%5E%7B4%7D%20)
. 3 to the power of negative 9 is
![3^{-9}](https://tex.z-dn.net/?f=%203%5E%7B-9%7D%20)
.
So
There are 16 3/8 in 6 inches