Answer:
x=5 , x=4, x=2
i got this answer by setting the x-5=0 then solve for x. same for each x-5, x-4, x-2.
 
        
                    
             
        
        
        
X >- 5 
-2x -4 < 3x +21
 +4 +4
-2x < 3x +25
 -3x -3x
-5x < +25
-5x/-5 25/-5
X > -5
        
             
        
        
        
Average:
4.4 / 3 = 1.4666666666667
Count:
3
Sum:
4.4
Average:
4.4 / 3 = 1.4666666666667
Count:
3
Sum:
4.4
 
        
             
        
        
        
Answer:

Step-by-step explanation:
We are given that: 

Where <em>A</em> is in QI. 
And we want to find sec(A). 
Recall that cosecant is the ratio of the hypotenuse to the opposite side. So, find the adjacent side using the Pythagorean Theorem: 

So, with respect to <em>A</em>, our adjacent side is 63, our opposite side is 16, and our hypotenuse is 65. 
Since <em>A</em> is in QI, all of our trigonometric ratios will be positive. 
Secant is the ratio of the hypotenuse to the adjacent. Hence: 
