24/2 equals 12
12 + 8 = 20
Just like you drew those dotted lines. You know how to find the areas of rectangles which is A=length x width
The answer would be 20cm^2+6cm^2+18cm^2=44 cm^2
Answer: Option B
B. 
Step-by-step explanation:
We have the following equations:
(1)
(2)
Let us call "a" the coefficient of the variable x in the first equation and call "b" the coefficient of the variable x in the second equation.
Then we must multiply the number "a" by a value z such that when adding
the result is zero.

So

We solve the equation for z


The first equation must be multiplied by a value of 
Answer:
y=|-x+4|-8
Step-by-step explanation:
reflected across the y-axis: f(x) -> f(-x), (x,y) -> (-x , y)
Answer:
Step-by-step explanation:
(2x+1)^2+(2x^2+2x)^2=
(2x+1)^2=4x^2+4x+1
(2x^2+2x)^2=4x^4+8x^3+4x^2
4x^2+4x+1+4x^4+8x^3+4x^2=4x^4+8x^3+8x^2+4x+1
(2x^2+2x+1)^2=4x^4+8x^3+8x^2+4x+1
4x^4+8x^3+8x^2+4x+1=4x^4+8x^3+8x^2+4x+1