Hi,
This is using 'n', so there would be a lot of possibilities, but I would form a circle with the group of people, then each person would shake the person to their right, and then to their right, one time. This method would not vary because a circle can contain even or odd number of people.
Hope this helps!
<span> 6.022 x 1023 i think thats how much
</span>
Step-by-step explanation:
18.84/2= 9.42/3.14 = 3 times 3 = 9 times 3.14 = 28.26
answer is 28.26
sorry if i get it wrong this is how i remember finding it. Im very sure this is how it is
Answer:
<h2>neither</h2>
Step-by-step explanation:
If AB an CD are parallel, then their slopes are the same.
If AB and CD are perpendicular, then the product of their slopes is equal -1.
The formula of a slope:

Calculate the both slope:


The line AB and line CD are not parallel

The line AB and line CD are not perpendicular.
Answer:

Step-by-step explanation:
Given
-
← factor denominator
=
- 
We require the fractions to have a common denominator.
Multiply numerator/denominator of first fraction by x
=
- 
Subtract terms on numerator leaving the common denominator
= 
= 