Answer: x-intercept 13,0 y 0, 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
∠ XYZ ≈ 72.9°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tanXYZ =  =
 =  =
 =  , thus
 , thus
XYZ =  (
 ( ) ≈ 72.9°  to 1 dec. place )
 ) ≈ 72.9°  to 1 dec. place )
 
        
             
        
        
        
I think the answer is: 7,015,000,000
        
                    
             
        
        
        
Answer:
  The circumference is the distance around the circle, similar to the perimeter of a polygon.
Step-by-step explanation:
The term "circumference" is often used to refer to the once-around length of any circular or roughly-circular object. One can refer to the circumference of an ellipse or of one's head, for example.