For this question you need to use the formula: y=p(1+r)^t. P is the principle, or the starting amount, $10,000, r is the rate of growth or decay, and t is the number of years. y=10,000(1.05)^x
        
                    
             
        
        
        
Just use your right angled triangle formula.
A=

Plug n chug 
A=

A=71.5 
 
 
        
        
        
It’s 39 -180 because they are completray
        
                    
             
        
        
        
Step-by-step explanation:
sec x − cos x
Secant is the inverse of cosine:
(1 / cos x) − cos x
Find the common denominator:
(1 / cos x) − (cos² x / cos x)
Subtract:
(1 − cos² x) / cos x