You can use a tangent:

We have opposite = 17 and adjacent = x.

substitute:
       cross multiply
     multiply both sides by √3

      divide both sides by 3

Use the Pythagorean theorem:

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Other method.
 triangle.
The sides are in the ratio 
Therefore

 
 
        
             
        
        
        
Answer:
(3 7/8, 2 3/4)
Step-by-step explanation:
To find the midpoint, the formula is (x1-x2)/2 and (y1-y2)/2. So, in this case, our x1 is 4 1/2 and our x2 is -3 1/4. Subtract x2 from x1 and you will get 7 3/4. Then, divide by 2 to get 3 7/8. This is our x-coordinate. 
Our y1 is 3 3/4 and our y2 is -1 3/4. Subtract y2 from y1 to get 5 1/2. Then divide by two to get 2 3/4. This is our y-coordinate.
Now we have our x and y coordinates.
(3 7/8, 2 3/4)
 
        
             
        
        
        
1) y = 1x + 95.50
x = number of bandanas 
2) y = (1 • 50) + 95.50
$145.50 for 50 bandannas 
3) 116.50 = 1x + 95.50
get x by itself 
116.50 = 1x+ 95.50
-95.50 -95.50
21 = 1x
divide by 1
21 = x
 you get 21 bandannas when you pay $116.50
        
                    
             
        
        
        
Answer: 12 cm
Step-by-step explanation:
The masses of the spheres are proportional to their volums, and the cube of the ratio is k^3=135/5=27 ==> k=3
The greater radius is 3*4=12 (cm)
 
        
             
        
        
        
Answer:
x = 11
Step-by-step explanation:
(x+5)2 = 32
2x + 10 = 32
2x = 32 - 10
2x = 22
x = 11