Answer:
5.5 inches
Step-by-step explanation:
1) the formula to find the area of a square is l^2= area and l=length
in this case we already know the area but not the length
so we have to find the square root of 30 as the opposite operation needs to be used to find the missing number
so 
√30= 5.47
5.47 rounded= 5.5
the length of one side is 5.5 in
 
        
             
        
        
        
What questions I mean there is no questions
        
             
        
        
        
Answer:
The answer is -1.255 for residual value.
Step-by-step explanation:
We are tasked to solve for the residual value given that when x equals 29, y will be equals to 27.255. But, when it is tested, y actual value is 26. The formula in solving residual is shown below:
Residual value = Observed value - predicted value
Residual value =  26 - 27.255
Residual values = -1.255
 
        
             
        
        
        
In the familiar decimal number system that we use every day, moving the place 
of a digit changes its value by a power of 10 .
In a system of numbers to any other base, moving the place of a digit changes 
its value by a power of whatever the base of that number system is.