Answer:
See explanation
Step-by-step explanation:
Plot the solution sets to both inequalities.
1. For the inequality  First, plot the dotted line
 First, plot the dotted line  (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.
 (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

so the origin does not belong to the needed part. Shade the part, which does not include origin.
2. For the inequality  First, plot the dotted line
 First, plot the dotted line  (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.
 (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

so the origin does not belong to the needed part. Shade the part, which does not include origin.
3. Find the common region of these two shaded parts - this is the solution to the system of two inequalities.
 
        
             
        
        
        
In the ratio, the numbers are 2 for the shortest side, 3 for the middle sized side, and 4 for the longest side.
2 is to 6 cm as 4 is to x
2/6 = 4/x
2x = 4 * 6
2x = 24
x = 12
Answer: The longest side measures 12 cm.
        
             
        
        
        
Answer:
(x + 2) ^2 (x - 2) ^ 2 so A is the answer. 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
To express your answer in terms of pi, simply refrain from substituting pi's numerical value for its symbol in the equation. That way, your answer will look like xπ where x is whatever number you come up with, and π is simply a placeholder.