Using it's concept, the probabilities are given as follows:
19. A. 1/3.
20. F. 1/6.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, there are 1 + 1 + 3 + 4 + 3 = 12 papers. 4 have a score of 6, hence, in item 19, the probability is:
p = 4/12 = 1/3.
Which means that option A is correct.
2 papers have a score greater than 12, hence the probability in item 20 is given by:
p = 2/12 = 1/6.
Which means that option F is correct.
More can be learned about probabilities at brainly.com/question/14398287
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The answer will be Negative
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Area of sector is given as θ/360*πr²
Where,
θ = central angel of sector, m < DCE = 60°
r = radius = 4 feet
Area of sector = 




Area of the sector = 8/3π ft²
  
        
             
        
        
        
Answer:
45
Step-by-step explanation:
OK, first we turn the variables into into the actual values:
The equation will look like this: 
(2)5 + (-5)(-7) 
Now its easier to solve!  Lets solve (2)5!
2 * 5 = 10
The equation looks like:
 10 + (-5)(-7)   
 We will also solve (-5)(-7). Remember that a negative number times a negative number is positive!
-5 * -7 = 35
Lets finish the rest:
10 + 35 = 45.           
Hope this is correct and have a nice day!       
 
        
             
        
        
        
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.  Inequality Form:
<h2>
n < -1</h2>