Answer:
The value of m is 6.
Step-by-step explanation:
Here, the given equation,


Let the roots of the equation are a-3b, a-b, a+b and a + 3b, ( they must be form an AP )
Thus, we can write,



















But m > 0,
Hence, the value of m is 6.
 
        
             
        
        
        
Answer:
-11
Step-by-step explanation:
Given

Use properties:

Thus,

 
        
             
        
        
        
Answer:
3 3/8
Step-by-step explanation:
4          5           27
---   -   -----   =  -------  or 3 3/8
1           8           8
 
        
             
        
        
        
D-10-2d+7 = 8 + d- 10 -3d
d-2d-10+7 = 8-10 +d -3d
-d-3=-2-2d
-d+2d=3-2
d=1
Final answer: C. d=1