43.54 divided by 3.5= unit rate
12.44
        
                    
             
        
        
        
Answer: cos(Θ) = (√15) / 4
Explanation:
The question states:
1) sin(Θ) = 1/4
2) 0 < Θ < π / 2
3) find cos(Θ)
This is how you solve it.
1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

2) From which you can find:

3) Replace sin(α) with 1/4
=> 

=> 

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:
cos(Θ) = 

.
And that is the answer.
 
        
             
        
        
        
Answer:
27/40 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Yes because 6 is 1/2 of 12