If I am reading the question correctly it would come out to -6x+42  First do all the addition and squaring, then factor in that negative.  You come out to -2x^3 +2x^3-4x-2x+25+5+9+3.  The x^3's cancel, the -x's add to -6x, then all that other adds to 42.
        
                    
             
        
        
        
Answer:
As  , it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
Step-by-step explanation:
1. Relevant data:

2. Hypotesis testing


3. Find the rejection area
From the one tail standard normal chart, whe have Z-value for  is 1.56
 is 1.56
Then rejection area is left 1.56 in normal curve.
4. Find the test statistic:


5. Hypotesis Testing


As  , it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.
 
        
             
        
        
        
I use edge also most of the answers come for this app all u have to do is copy and paste your answer hopefully this helps 
 
        
             
        
        
        
The future worth (F) of the investment at present (P) with a compound interest i after n years is calculated through the equation,
                                      F = P x (1 + i)^n
Substituting the known values,
                                      F = ($200) x (1 + 0.07)^5 = $280.51
Thus, the future worth of the investment is approximately $280.51. 
        
                    
             
        
        
        
It’ll be D) 7/46 you can reduce it by dividing everything with 4