Answer:
C.   G(x) = (x+3)^3
Step-by-step explanation:
Inside the parenthesis, adding or subtracting numbers moves the shape along the x-axis. BUT signs have opposite effects. Adding a number moves the shape towards the negative side. Subtracting a number moves it to the positive side.
 
        
             
        
        
        
Answer:
See below.
Step-by-step explanation:
Let the side have a length x units .
The triangle formed by an altitude  is a 30-69-90 triangle so the sides are in the ratio 2:1:√3   where √3 is the altitude. Therefore if the side of the triangle = x then altitude = √3  * x / 2   =   √3x/2.
So we need to prove that  3x^2 =   4 (√3x/2)^2.
Simplifying:-
4 (√3x/2)^2 =  4 *( 3x^2/ 4) = 3x^2. This completes the proof,