What is the mean of the data set? 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18 a.14.75 b.15.75 c.13.50 d.14.00 need answer asa 
                cricket20 [7]             
         
        
If you add them all up and divide it with how many different numbers you have then you get 13.5 (C)
        
             
        
        
        
Can you please add the statement? Then I may be able to help you... Thanks!
        
                    
             
        
        
        
Answer:
None of the above ? (the equation should be y=12)
Step-by-step explanation:
the line parallel to line y=40-1=39 means it's a horizontal line. Which means it's y coordinate is also a constant. Since it pass through (2,12),it means the constant of y is 12.
 
        
             
        
        
        
Answer:
d. 89°
Step-by-step explanation:
The given measure of the angles formed are;
m∠AED = 48°, m = 175°
 = 175°
According to circle theorem, the angle formed by a chord and a tangent of a circle is given by half of the measure of the arc intercepted by the chord in the direction of the angle;
Therefore;
m∠AED = (1/2) × m = 48°
  = 48°
∴ m = 2 × 48° = 96°
 = 2 × 48° = 96°
m∠AEF = (1/2) × m 
 
m + m
 + m = 360° (angle round a circle)
 = 360° (angle round a circle)
∴ m = 360° - m
 = 360° - m = 360° - 96° = 264°
 = 360° - 96° = 264°
m = m
 = m + m
 + m 
 
∴ m = m
 = m - m
 - m = 264° - 175° = 89°
 = 264° - 175° = 89°
m = 89°.
 = 89°.