Answer:
The answer to your question is A = 441.50 km²
Step-by-step explanation:
Data
Big triangle           Small triangle
 base = 33 km       base = 19 km
 height = 40 km     height = 23 km
Process
1.- Calculate the area of the big triangle
Area = base x height / 2
Substitution
Area = 33 x 40 / 2
         = 1320 / 2
         = 660 km²
2.- Calculate the area of the small triangle
Area = 19 x 23 / 2
         = 437 / 2
         = 218.5 km²
3.- Subtract the small area to the big area
Share area = 660 - 218.5
                   = 441.50 km²
 
        
                    
             
        
        
        
So, to do this, you would multiply inside the radicals. The answer would be the fourth root of x^4, or x. 
        
                    
             
        
        
        
Hope you can read that okay
 
        
        
        
2/4, .64, 65%, 7/10. To turn fractions into decimals you divide, and for percent you go 2 decimal places up or forward. HOPE THAT HELPS!
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
<em>We'd add c in both sides</em>
7x = c + k
<em>Divide 7 in both sides isolate the variable</em>
7x/7 = x
c+k/7
x = c + k/7
Our answer is x = c+k/7