Answer:
C: X <= 7
Step-by-step explanation:
Reimagine the inequality as 
3 - 1 >= X - 5/7*X
2 >= 2/7*X
1 >= 1/7 * X
7 >= X
 
        
             
        
        
        
Answer:
The sample space is:

Step-by-step explanation:
The sample space of an experiment is a set of all the possible values that satisfies that experiment.
The five supervisors are A, B, C, D and E.
Two are to selected.
The number of ways to select 2 supervisors  from 5 is: 
The sample space will consist of 10 combinations.
The sample space is:

 
        
             
        
        
        
Answer:Thus,  (-3)-4 = 1/(-3)4.
Step-by-step explanation:
Negative exponents have the following property:   n-m = 1/nm   OR   1/n-m = nm
So for  (-3)-4 ,  n= -3 and -m= -4 (or m= 4).
Thus,  (-3)-4 = 1/(-3)4.
 
        
             
        
        
        
She bought 4, then she bought 3 more....so she bought 7 packs
each pack contains 12 pencils..
so 7 packs each containing 12 pencils ...
7(12) = 84 total pencils <===
        
                    
             
        
        
        
Answer:
x=-36
Step-by-step explanation:
Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2
then subtract 9/2x on both sides so itll be 

-9/2x       -9/2x
 because if you do 8/2-9/2 it's -1/2
   because if you do 8/2-9/2 it's -1/2
then multiply the reciprocal to both sides so

which then cancels out -1/2 and makes it 
x=-36