Answer:
Step-by-step explanation:
3x^5+6x^3
=3x^3(x^2+2)
 
        
                    
             
        
        
        
Answer:
Sophie has 12 feet more 
Step-by-step explanation:
 
        
             
        
        
        
Given : A rectangular picture frame has a perimeter of 52 inches. The height of the frame is 12 inches. 
To Find : The width of the frame .
Solution : Let us take the width of the frame be x . So , we know the formula to find the perimeter of rectangle as ;

Where , l is the length of the rectangle and b is the breadth of the rectangle .
⇒ Perimeter = 2 ( l + b ) .
⇒ 52 in. = 2 ( 12 + x ) in.
⇒ 52 in.= 24in. + 2x .
⇒ 2x =( 52 - 24 ) in
⇒ 2x = 28 in.
⇒ x = 28/2 in. 
⇒ x = 14 in.
<u>Henc</u><u>e</u><u> the</u><u> </u><u>width</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>recta</u><u>ngle</u><u> </u><u>is</u><u> </u><u>1</u><u>4</u><u> </u><u>inches</u><u>.</u>
 
        
             
        
        
        
Answer:
System A is A System B is B
Step-by-step explanation: