Answer:
37
Step-by-step explanation:
Well you said the answer in your question
 
        
                    
             
        
        
        
Answer:
I just learned this about a few weeks ago I hope this helps.
Step-by-step explanation:
Since it's cosine you're only looking at Adjacent and the hypotenuse which the adj is 20 and the hyp is 25 so since cosine is adj/hyp you do 20/25 then simplify it to 20/25 divide both by 5 so it's simplified to 4/5. 
Then you do Cos-1(4/5)=36.869 which is rounded to the tenth 36.9 but rounded to the hundredth 36.87.
Hope this helps
 
        
             
        
        
        
Answer:
1. 7% change increase
2. 27%change decrease
3. 39% change decrease
4. 29% change increase
Step-by-step explanation:
I hope this is right 
 
        
             
        
        
        
Answer:
78,792,000,000,000 miles
Step-by-step explanation:
(5.88 * 10^12) * 13.4 = 78,792,000,000,000