Answer:
segment BC ≅ segment BC (reflexive property of congruence)  
Step-by-step explanation:
Reflexive property of congruence states that an angle, line segment, or shape is always congruent to itself.
Before statement 6, you need to prove that side BC is the same for both triangles
 
        
                    
             
        
        
        
For congruence of triangles.
If;

Then the corresponding sides and angles will be equal.

Only the above congruence statements are true.
Any options that has any of the above congruence statement is true.
 
        
             
        
        
        
Answer:
9/20 yes, 4/15 not. See below
Step-by-step explanation:
Pick 9/20 and multiply numerator and denominator by 5:
9/20 = 45/100
We know that if we divide a number by 100 we need to move the coma as two places left, so:
9/20 = 45/100 = 0.45
And this is a terminal decimal as we know where it ends. 
On the other hand if we pick 4/15 let try to divide it (here I will do it 'manually'):
4 |_ 15
we can divide 4 by 15, so we use 40 and begin with a comma
40 |_ 15
       0.
15 enters 2 times in 40 with a rest of 10, so:
40 |_ 15
   30  0.2
   100
100 divided by 15 is 6 and we have 10 as rest again, and again and again...
40 |_ 15
   30  0.266.....
   100
     100
       ....
So, we will have 0.266666666666666 infinitely. The decimal for 4/15 is non terminating and is 0.26666666666666666...
 
        
             
        
        
        
Answer:
11.93
Step-by-step explanation:
Order of Operations rules require that we do the division first:
-0.48      48
-------- = --------- = 0.3
 -1.6        1600
Then we combine 11.68 ad 0.3, obtaining 11.93.
 
        
                    
             
        
        
        
Answer:
its easy
Step-by-step explanation:
First you need to get your two numbers or more than to like for example 6 and 9 6<9 the alligator mouth would go to the 9 because its bigger and say for instances 9,10,5 it would be 9<10>5 ten is bigger than them all so there you go