This follows from the half-angle identity for cosine.
 
 
        
        
        
This is a 45-90-45 triangle so in order to find the answer we have to multiply the hypotenuse, 6, by the square root of 2 or radical 2. Then multiply top and bottom by radical 2. Then simplify. 
 
 
        
        
        
Answer:
they produce 8,415 notebooks in 11 days
 
        
             
        
        
        
Answer:
The value of car after n years at the depreciation rate is                              $ 50,000  .
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Step-by-step explanation:
Given as :
The cost of the car that Jill bought = $ 50,000
The depreciation rate of car value = r = 10 % a years
Let The car after n years of depreciation = $ A 
Now, According to question
The cost of car after n years of depreciation = initial cost of car × 
Or, $ A = $50,000 × 
Or, $ A = $50,000 × 
Or, $ A = $50,000 × 
I.e $ A = $50,000 × 
So, value of car after n years = $ 50,000 
Hence The value of car after n years at the depreciation rate is                      $ 50,000  . Answer
  . Answer
 
        
             
        
        
        
Answer:
1.33
because you have to divide