Answer:
23+7-2x=8x
We simplify the equation to the form, which is simple to understand  
23+7-2x=8x
We move all terms containing x to the left and all other terms to the right.  
-2x-8x=-23-7
We simplify left and right side of the equation.  
-10x=-30
We divide both sides of the equation by -10 to get x.  
x=3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
19.37.
Step-by-step explanation:
Integrating the  function we get
x^4/4 - 5x^3/3 + x^2 + 8x
Area under the curve from x = -1 to x = 0
= (-1)^4/4 - 5(-1)^3/3 + (-1)^2 - 8
= 5.083
In a similar way we calculate area from 0 to 2
this = 10.667.
Total = 15.75.
Now we subtract 12.13 to get the area  from x = 2 to x =p.
= 15.75 - 12.13 = 3.62
So total shaded area = 15.75 + 3.62
= 19.37.
 
        
             
        
        
        
Gotta add a picture to show us what you want us to do.
 
        
                    
             
        
        
        
The ratio of the trout with tags that are caught and the total trout with tags is first calculated.
     r = 12 trout / 180 trout = 1/15
Then, we divide the number of trouts caught without tag by the value obtained above.
     N = (48 - 12) / (1/15) = 540
Then, we add the number obtained above and 180.
     T = 540 + 180 = 720
ANSWER: 720
        
             
        
        
        
Answer:
The answer is a trapezoid.