Answer:
{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x
4
 +4x
3
 y+6x
2
 y
2
 +4xy
3
 +y
4
  
Step-by-step explanation:
1 Use Square of Sum: {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}(a+b)
2
 =a
2
 +2ab+b
2
 .
({x}^{2}+2xy+{y}^{2})({x}^{2}+2xy+{y}^{2})(x
2
 +2xy+y
2
 )(x
2
 +2xy+y
2
 )
2 Expand by distributing sum groups.
{x}^{2}({x}^{2}+2xy+{y}^{2})+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x
2
 (x
2
 +2xy+y
2
 )+2xy(x
2
 +2xy+y
2
 )+y
2
 (x
2
 +2xy+y
2
 )
3 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x
4
 +2x
3
 y+x
2
 y
2
 +2xy(x
2
 +2xy+y
2
 )+y
2
 (x
2
 +2xy+y
2
 )
4 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2{x}^{3}y+4{x}^{2}{y}^{2}+2x{y}^{3}+{y}^{2}({x}^{2}+2xy+{y}^{2})x
4
 +2x
3
 y+x
2
 y
2
 +2x
3
 y+4x
2
 y
2
 +2xy
3
 +y
2
 (x
2
 +2xy+y
2
 )
5 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2{x}^{3}y+4{x}^{2}{y}^{2}+2x{y}^{3}+{y}^{2}{x}^{2}+2{y}^{3}x+{y}^{4}x
4
 +2x
3
 y+x
2
 y
2
 +2x
3
 y+4x
2
 y
2
 +2xy
3
 +y
2
 x
2
 +2y
3
 x+y
4
  
6 Collect like terms.
{x}^{4}+(2{x}^{3}y+2{x}^{3}y)+({x}^{2}{y}^{2}+4{x}^{2}{y}^{2}+{x}^{2}{y}^{2})+(2x{y}^{3}+2x{y}^{3})+{y}^{4}x
4
 +(2x
3
 y+2x
3
 y)+(x
2
 y
2
 +4x
2
 y
2
 +x
2
 y
2
 )+(2xy
3
 +2xy
3
 )+y
4
  
7 Simplify.
{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x
4
 +4x
3
 y+6x
2
 y
2
 +4xy
3
 +y
4
  
 
        
                    
             
        
        
        
Answer: 113.1
Step-by-step explanation: 
The formula is 


The radius is 3, and 3 cubed is 27.
Then, 27 x  is about 84.82
 is about 84.82
Finally, 84.82 x  is about 113.1
 is about 113.1
Hope this helps. Please mark as brainliest, thanks!
 
        
                    
             
        
        
        
Slope = 

------------------------
6 - 6 = 0
15 - (-1) = 16
0 / 16 = 0
--------------------------------
You have a 
slope of 0, meaning that this is a straight horizontal line
 
        
        
        
<span>It costs 19.48, because $16,421.40 / 843 comes out to 19.479, and 19.479 rounds to 19.48. So the answer is B $19.48.
Hope this helps :)</span>
        
                    
             
        
        
        
Answer:
the answer is a, e, f,
Step-by-step explanation:
you only round up when its 5 or more, you round down when its 4 or less