Where is it? In order to help you I need to see what the problem is.
 
        
             
        
        
        
Given:
The expression is:

To find:
The value of the given expression when  .
.
Solution:
We have,

Substituting  in the above expression, we get
 in the above expression, we get




Therefore, the value of given expression at  is 59.
 is 59.
 
        
                    
             
        
        
        
First, let's see how 23 compares with the squares of the positive whole numbers on the number line.
1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
The value of 23 is right between the square of 4 and the square of 5. Thus, the value √23 will be between 4 and 5.
Since 23 is much, much closer to the square of 5 than the square of 4, we can assume that the value √23 will be closer to 5 on the number line than 4.
Look at the attached image to see where I plotted the approximate location of √23.
You will realize that this approximation is pretty close since the actual value is roughly 4.80.
Let me know if you need any clarifications, thanks!
 
        
             
        
        
        
First number: x = 19
Second number: Y = -5
x + 2y = 9
2x + y = 33
        
             
        
        
        
Answer:
2.6
Step-by-step explanation:
i just counted