Answer:
3 1/3 is the answer im pretty sure
 
        
             
        
        
        
Answer:
d = -4
Step-by-step explanation:
3d – 4 + d = 8d – (-12)
3d - 4 + d = 8d + 12
4d - 4 = 8d + 12
(4d - 4d) - 4 = (8d - 4d) + 12
-4 = 4d + 12
-4 - 12 = 4d (+ 12 - 12)
-16 = 4d
-16/4 = 4d/4
d = -4
 
        
                    
             
        
        
        
0.00000003513  move the decial 8 places and u will get 3.513
        
                    
             
        
        
        
Answer: The Given sequence is 9, 10, 11, 12
We need to find the expression to describe the sequence.
Let  be the  term of the sequence.
Let n represent the position of the term.
Let a be the first term in the sequence.
and d be the common difference between the sequence
Hence the expression to find the above sequence is given below;
when n=1 d= 1 a = 9
when n=2 d= 1 a = 9
when n=3 d= 1 a = 9
when n=3 d= 1 a = 9
Hence the expression is 
Step-by-step explanation: