Answer:
u = (b/hn)
Step-by-step explanation:
The inverse!!
Answer: 
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:

2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and 
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is:

Answer:
x= -8/3
Step-by-step explanation:
Answer:
Option C is the correct choice that is 
Step-by-step explanation:
As this is a multiple choice question we will reduce the options and work on it with the given points 
Note:We know that
where there is
sign associated with it have a straight line graph there is no breaking in the line.
And when there is simply
we have a dashed line when we plot it on a graph.
So option B and D are discarded.
Now one-by one we will put the values
to know which equation it satisfies.
If we put
then
.
So working with option A.

Plugging the values.

And we know that
must be equal to
so this is not the right answer.
We are left with only one choice that is C .
So option C is the correct option of the above inequality.
Solution -
We have 6 males and 6 females. And in each group we have to choose one male and a female
For the first group we have (6,6) options, after choosing one pair we have (5,5) options, then (4,4) options, then (3,3) options, then (2,2) options, then (1,1) options.
So the first has 36 possibilities, 6 possible males, 6 possible females. 6 times 6 is 36.
After picking up one male and female, we have 5 males and 5 females, 25 possibilities and so on.
Total we have 36×25×16×4×1 = 57600.