Answer with Step-by-step explanation:
Since we have given that 
a + b = c
and a|c
i.e. a divides c.
We need to prove that a|b.
⇒ a = mb for some integer m
Since a|c,
So, mathematically, it is expressed as 
c= ka
Now, we put the above value in a + b = c.
So, it becomes,

a=mb, here, m = k-1
Hence, proved.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given
See attachment
Required
Determine the measure of 
 
  .
.
So, we have:

Where:


Substitute these values in the above equation.


Collect Like Terms:


 
        
                    
             
        
        
        
Answer:
nn n h hbjfbyfdxjnw1urdnbr3rb3j ruh3w drk4jtYHU&jt5krde,frtnjhd,dbf
Step-by-step explanation:
jddddddmk.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
        
             
        
        
        
Answer:
I got 18.26
Step-by-step explanation:
Added them up