The surface area of the box is being referred to as A
The surface area will be the sum of the four rectangular sides' areas and the base area.
Base area = x²
Rectangular side area = xh
A = x² + 4xh
Volume is, as you said,
V = x²h
Lets substitute h from the formula of A to obtain A in our final answer. Substituting x is possible, but more difficult
(A - x²)/4x = h
V = (x²) * (A - x²)/4x
V = (Ax - x³)/4
Answer: 20%
Step-by-step explanation:
There are 15 total cookies. Divide 3 by 15, 3 being how many cookies he took out. Then you get 0.2. Move the decimal over two and you have 20%.
Im not rlly sure about this it seems confusing
Answer:
a) 
b) 
Step-by-step explanation:
<u>Part (a)</u>
Given polynomial :
The binomial that should be added to the given polynomial to get a polynomial that does not contain the variable x is:





<u>Part (b)</u>
Given polynomial :
The binomial that should be added to the given polynomial to get a polynomial that does not contain the variable y is:





<h3>
Answer: Choice B</h3>

which is the same as x/((x+6)(x-2)) - 3(x-2)/((x+6)(x-2))
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Explanation:
The LCD is (x+6)(x-2) which is the factorization of x^2+4x-12, and that is the denominator of the first fraction. The first fraction has the LCD already. The second fraction does not. It has (x+6) but it is missing (x-2).
We multiply top and bottom of the second fraction by (x-2) to get the second fraction to have the LCD.
turns into 
------
So,



This is the same as x/((x+6)(x-2)) - 3(x-2)/((x+6)(x-2))
Note the parenthesis around "(x+6)(x-2)"
Instead of x/(x+6)(x-2) you should write x/( (x+6)(x-2) ) to ensure that all of "(x+6)(x-2)" is in the denominator.