Answer:
um..
Step-by-step explanation:
<span>The correct answer is 6.
The clearest way to determine this is by creating a table of possible hand shaking. If we label the people A-D, the following are the ways they can be combined:
AB
AC
AD
BC
BD
CD
There are no other combinations. </span>
The sequence is geometric, so

for some constant r. From this rule, it follows that

and we can determine the first term to be

Now, by substitution we have

and so on down to (D)

(notice how the exponent on r and the subscript on a add up to n)
First we will calculate the distance AB.

If C is 5/9 of the distance, mathematically speaking that means:

R: The coordonate of C is 15.
Answer:
It takes Neptune 165 earth years to orbit the sun.
Vatican City is the capital of the Vatican City state situated within the Italian city of Rome. It occupies an area of only 0.17 square miles making it the world's smallest state by land area.
The battle of Hastings took place in a small town called; Battle in East Sussex, England.
Step-by-step explanation: