There are 5 cards less than nine that are prime, so there is a 5/9 chance of picking the first one prime. The second one would be 4/8 or 1/2, because you have removed a card from the deck. You multiply them together to get: 5/18. 
Hope this helps!
        
             
        
        
        
Answer: 3.16 
The first point, T = (x1,y1), and the second point, U = (x2,y2). Can be approximated as 3.16,so the distance between the two points is 3.16 units.
        
             
        
        
        
The answer is c, 2.To find this, look on the graph for a point with the y value of -1. (2,-1) is the solution.
        
                    
             
        
        
        
Answer:
Hi there!
Your answer is:
-1 >=x>5
This can be broken down to:
x <= -1
x>5
Which fits your requirements!
 
        
             
        
        
        
To get a close estimate, we can round 49 up to 50 and 311 down to 300, obtaining an estimate of 50/300 = 1/6, or 0.1666... as a repeating decimal. That decimal approximation is a little less than one hundredth away from the actual decimal approximation of ≈ 0.1576