5. Is the sequence arithmetic? If so, identify the common difference.

14, 21, 42, 77, ...

yes; 7
yes; –7
yes; 14
no
6. What is the 12th term of the sequence 10, 6, 2, …?
–16
–24
–34
–38
7. Find the missing term of the arithmetic sequence 22, ___ , 34, ...
46
16
28
40

Question

5.   Is the sequence arithmetic? If so, identify the common difference. 

14, 21, 42, 77, ... 

yes; 7
yes; –7
yes; 14
no
6.   What is the 12th term of the sequence 10, 6, 2, …?  
–16
–24
–34
–38
7.   Find the missing term of the arithmetic sequence 22, ___ , 34, ...  
46
16
28
40

anonymous · Answer

question6:
nth term= first term + (n-1) * difference

that is 12th term= 10+(12-1)*(-4)... so answer is (-34)

anonymous · Answer

question7:
if sequence is arithmetic
2*(middle term)= first term + third term

anonymous · Answer

question 5:
sequence is not arithmetic

parthkohli · Answer

@vedic Hey, long time! Haven't seen you here in months

anonymous · Answer

nice to see now u r ambassador.... good.... yeahh was bsy wid other thngs n xams.....

parthkohli · Answer

Do you remember me? Haha, nice to see that. Mine are complete.