The first thing he has to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a " 1 " in front of the parentheses, to help them keep track of the minus sign. Here's what the subtraction looks like, when working horizontally.
 
        
             
        
        
        
Answer:
A. can trace a particular file in a few seconds.
Step-by-step explanation:
The new locator has now easy access and user friendly. The data saved here is useful when you are locating a file. It will take few seconds to locate a file. This saves time in finding the relevant files. The new locator is user friendly and is not really technical to operate it.
 
        
             
        
        
        
Answer:
A = -10 
Step-by-step explanation:
A/2 = -5
Multiply both sides by the denominator of the fraction 
We have A/2 x2 = -5 x 2
A = -10
 
        
                    
             
        
        
        
For example 5/10\1/2 you would keep the 5/10 and flip the 1/2 to 2/1 and then multiply 5\10x2/1 to get 10/10 so 1
        
             
        
        
        
Answer:
12, 72, 180
Step-by-step explanation: