Answer:
A straight angle.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
12
Step-by-step explanation:
It has been going down by 6 because 24-6=18 and 18-6=12.
 
        
             
        
        
        
I think it is 4.5 but I might be wrong
        
                    
             
        
        
        
The value of ∠X = 58.11°, If ΔWXY, the measure of ∠Y=90°, XW = 53, YX = 28, and WY = 45.
Step-by-step explanation:
The given is, 
                    In ΔWXY, ∠Y=90°
                         XW = 53
                          YX = 28
                         WY = 45
Step:1
              Ref the attachment,
              Given triangle XWY is right angled triangle.
              Trigonometric ratio's,
                               
 ∅  
     
              For the given attachment, the trigonometric ratio becomes,
                               
 ∅  
.....................................(1)
              Let, ∠X = ∅
              Where, XY = 28
                          XW =  53
              Equation (1) becomes,
                                  
 ∅  
                                  
 ∅ = 0.5283
                                         ∅ = 
 (0.5283)
                                         ∅ = 58.109°
Result:
           The value of ∠X = 58.11°, If ΔWXY, the measure of ∠Y=90°, XW = 53, YX = 28, and WY = 45.
               
 
        
             
        
        
        
Answer:
This is because √-1 is<em> i</em>, which is an extension of real numbers called complex numbers.
Step-by-step explanation:
A real number is one that can be expressed in decimal form.Real numbers are those that appear on the number line.In mathematics, √-1 is i which is an extension of real numbers to represent complex numbers.