A) Intersecting lines allow for the creation for angles with a common vertex
B) if one of the angles is a right angle, the angle the vertical to it must also be a right angle
Step-by-step explanation
C) is not true because linear pairs are supplementary not complementary because a line = 180° 
 B) it’s true because they are corresponding vertical angles 
A) it’s true because they all have the same starting point or vertex 
 
        
             
        
        
        
Answer:
9. 
Step-by-step explanation:
When there is an absolute value, anything within the absolute value becomes positive. Things outside the absolute values stay as they are. 
|-12| - |-3| = 12 - 3 = 9. 
Hope this helps!
 
        
                    
             
        
        
        
N=11/60*(F-32). Multiply both sides by 60/11, so that 60/11*N=F-32. Add both sides by 32, F=60/11*N+32.
        
             
        
        
        
<span>This is a simple subtraction question. To find the answer, you simple need to subtract 15 from 104. This equals 89, so there were 89 4th graders at school that day in total. In the instance you're unsure that a subtraction equation is right, you can also add your answers back together to double check, so 89 + 15 = 104.</span>
        
             
        
        
        
Answer:
a) (0.5256,0.5944)  
c) Criticism is invalid
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 560
Proportion of mislabeled = 56%

a) 90% Confidence interval:


Putting the values, we get:

b) Interpretation of confidence interval:
We are 90% confident that the true proportion of all seafood in the country that is mislabeled or misidentified is between 0.5256 and 0.5944 that is 52.56% and 59.44%.
c) Validity of criticism
Conditions for validity:

Verification:

Both the conditions are satisfied. This, the criticism is invalid.