it is 10.63
Step-by-step explanation:
 Used a calculator 
 
        
             
        
        
        
<em><u>Explanation</u></em><em> </em><em>:</em>
The line DF is parallel to OB, therefore Angle x = Angle y.
( because, they for corresponding angle pair which are equal. )
And the angle made by an arc at center is always double the angle made by the same arc at its boundary, hence 
 
        
             
        
        
        
Answer:
A) True , B) True , C) False 
Step-by-step explanation:
A) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter. 
B) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter. 
C) False : Null Hypothesis can be accepted, despite of being actually false. This is called Type 2 Error. 
 
        
             
        
        
        
This problem requires the Pythagorean therom.
The distance between them is 7.
Since the distance between them is one more mile than ray's distance from home ray is 6 miles from home.
So rosa is 
So rosa is  miles away from home.
 miles away from home.
Rosa is about 3.6 miles from home.
 
        
             
        
        
        
The key term here is inverse variation - that is, two or more variables must multiply to a certain product.
So, let's multiply 12 and 8. We get 96.
The correct pair must contain factors of 96.
16 and 6 are factors of 96, so the answer is (D).