Answer:
Solution: x = 6
Step-by-step explanation:
Given equation is:

In order to solve the equation both sides will be squared

Verifying the solution

 
        
                    
             
        
        
        
Answer:
To ensure uniformity on an exam
Or 
To test whether you can distinguish between the two formats
Step-by-step explanation:
Standard form is when a straight line equation is rearranged in the form:

Therefore y=2x+4 in standard form is 

The slope-intercept form is when a a straight line equation is written in the form:

where m is the slope and c is the y-intercept.
The given equation is 

This is already in slope-intercept form:
The standard form and slope-intercept forms are just formats.
Your instructor may restrict you to leave your answer in one of these formats maybe for uniformity on a test.
You may also decide to rewrite an equation in slope-intercept form, so that you can easily identify the slope and y-intercept easily for graphing purpose.
 
        
             
        
        
        
Answer:
$399.98
Step-by-step explanation:
Given 
Mark down percent = 60%
Mark down price = $239.99
Required
Original price of the rack
Let x be the original price of the product. The equation to get x is as expressed below;
60% of x = 239.99
0.6x = 239.99
x = 239.99/0.6
x = 399.98
Hence the rack will ring up for $399.98 at the register
 
        
             
        
        
        
Answer:
median: 28
mean: 55 + 25 + 28 + 42 + 25 = 175    175 / 5= 35 
Step-by-step explanation:
median is the number that is in the middle of all of the other numbers 
mean is when you add all of the numbers together and then divide the total depending how many numbers you added together. 
 
        
                    
             
        
        
        
Answer:
167.9166459
Step-by-step explanation: