The total number of hours on stand by is 12 x 3 x 7 = 252 hrs.
The energy used would be (252 x 8.8)/1000 = 2.22 kW-hours.
The slope of the line is -2
Answer:
Slope of the line 
Step-by-step explanation:
Given that,
The point
lies on the curve
.
If
is the point lies on
.
To find:- Find the slope of line
.
So,
The coordinates of point
when it lies on 
if
then 
So,
≡
and many points can be calculated by given Equation.
Using the formula when two points
.

Then, substituting the coordinates we get,



⇒ 

Therefore,
Slope of the line 
I'm pretty sure its neither just substitute the x for -2 and solve. There has to be a consistency in the values 3 times for there to be a pattern.
See attached for the synthetic division table
The numbers in the bottom row are 1, 9 and 0
The last number is the remainder. So the remainder is 0
The other values in the last row (1 and 9) form the quotient, so we have 1x+9 = x+9 as the final answer
Final Answer: C) x+9