Answer:
Answer is 16/12
Step-by-step explanation:
Tan is Opposite by Adjacent. the opposite side is 16, adjacent side is 12 and hypotenuse is 20.
so O/A= 16/12 
 
        
                    
             
        
        
        
It's equal to -15 because you are dividing by an negative and if it's only 1 negative number in your equation then your answer will be a negative and if it's 2 negatives then it would be a positive answer
        
             
        
        
        
First step: name the sides according to geometry standards, namely, the sides are named the same lowercase letter as the opposing angle. A revised diagram is shown.
Second step: we need to know the relationships of the trigonometric functions.
cosine(A)=cos(63) = adjacent / hypotenuse = AC/AB .................(1)
sine(A)=sin(63) = opposite / hypotenuse = CB/AB .......................(2)
We're given AB=7, so
using (1)
AC/AB=cos(63)
AC=ABcos(63)=7 cos(63) = 7*0.45399 = 3.17993 = 3.180 (to three dec. figures)
Using (2)
BC/AB=sin(63)
BC=ABsin(63) = 7 sin(63) = 7*0.89101 = 6.237 (to three dec. figures).
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
x=60 
60
60+30=90
60-30=30
60+90+30=180
 
        
                    
             
        
        
        
Answer:
the removal discontinuity of the following function at x=-6 or x=6.
Step-by-step explanation:
factoring  f(x)  = (x - 6)(x + 6)
                          ----------------
                           x(x - 6)^x + 6)