I might not be correct please let me know !! But as of right now I think the answer is
-(4x-9)
Answer:
Step-by-step explanation:
can be written as 
can be written as 
In the sum digit at any position will be added at the digit at the same position
Answer:
Correct option: d -> 40,320
Step-by-step explanation:
To find all the arrangements of letters in a word where all the letters are different, we just need to calculate the factorial of the number of letters.
The word "grateful" has 8 different letters, so the number of arrangements of letters is:
8! = 8*7*6*5*4*3*2 = 40,320 different arrangements
Correct option: d
Denote the circle of radius 
by 
. is simple and closed, so by Green's theorem the line integral reduces to a double integral over the interior of (call it 
):
is a circle of radius , so we can write the double integral in polar coordinates as
a. For 
, we have
b. Let 
denote the integral with unknown parameter ,
By the fundamental theorem of calculus,
has critical points when
If 
, then line integral is 0, so we ignore that critical point. For the other two, we would find 
.
