Answer:
f(x) = 7/(x+3) -38/(x+3)²
Step-by-step explanation:
The denominator is a perfect square, so the decomposition to fractions will involve both a linear denominator and a quadratic denominator.
You can start with the form ...
... f(x) = B/(x+3) + A/(x+3)²
and write this sum as ...
... f(x) = (Bx +3B +A)/(x+3)²
Equating coefficients gives ...
... Bx = 7x . . . . . B = 7
... 3B +A = -17 . . . . the constant term
... 21 +A = -17 . . . . filling in the value of B
... A = -38 . . . . . . . subtract 21 to find A
Now, we know ...
... f(x) = 7/(x+3) -38/(x+3)²
Answer:
Ella grew 
of an inch more
Step-by-step explanation:
For this problem, you want to subtract Ben's growth from Ella's.
This expression would be 
-
.
To work these out, they must have the same denominator (which should be the lowest common multiple or LCM).
In this case, the LCM is 12, so you want to multiply each side so the denominator is 12. This means the first fraction should be multiplied by 
and the second by 
.
This makes the expression 
-
, which equals .
**This content involves adding and subtracting fractions, which you may want to revise. I'm always happy to help!
Answer:
20 m^2
Step-by-step explanation:
First multiply the parallelogram part: 3 x 5 = 15
Then multiply the triangle part: (2 x 5)/2 =5
Then add: 15 + 5 = 20
Good Luck!
Dont click or go on that link
Answer:
Top right option
Step-by-step explanation:
multiplying the digits, you get the volume, which is 3/4
Answered by GAUTHMATH
