Domain is the set of numbers you can subsitute for the input (in this case x) and for it to be allowed (dividing by zero is not allowed so if you have y=6/x then x is not allowed to be zero, it can be anything else though)
ok, so from experience the x^2-4x-12 part is supposed to be all under the parenthaseeese and if so, go to part AAAAAAAAAAAAA
if it isn't and only x^2 is below the fraction, then go to BBBBBBBB
AAAAAAAAA

so the domain must be valid
one rule that we have is that you cannot divide by zero
therefor we find what numbers make the denomenator zero and don't allow them
x^2-4x-12=0
factor
(x-6)(x+2)=0
x-6=0
x=6
x+2=0
x=-2
so since -2 and 6 make the thingummy zero, we say that
domain={all real numbers except for -2 and 6}
BBBBBBBBBBBBBBB

so remember that you cannot divide by zero
therefor you have to make sure the deomenator is not equal to zero by finding those values and restricting them from the solution set
so
x^2=0
squaer root both sides
x=0
domain={all real numbers except for 0}
so if the x^2-4x-12 is under the dividing line, then the answer is domain={all real numbers except for -2 and 6}
if the x^2 only is under the dividing line then the answer is domain={all real numbers except for 0}
Answer:
Choice B
Step-by-step explanation:
We can perform a least squares regression model in Ms. Excel to determine the equation of the line of best fit for the data given;
The first step is to enter the data into any two adjacent columns of an excel workbook. Next, click on the Data ribbon followed by the Data Analysis tool pack. We then proceed to select regression from the pop-up window. The final step is to select the y range and the x range of values from our data.
Once we click ok, Excel returns our least squares regression model as shown in the attachment below.
The coefficient of X variable 1 is our slope.
The Lagrangian is

with critical points where the partial derivatives vanish.



Substitute
into the last equation and solve for
:

Then we get two critical points,

We get an absolute maximum of
at the second point, and an absolute minimum of
at the first point.
First, minus salary
paycheck=comission+salary
paychec-salary=comision
6500-1000=5500
comission/sales=5500/45000=0.122222222/1
pecent means parts ou fo 100
x%=x/100
0.122222/1 times 100/100=12.2222/100=12.222%
about 12%