SOLUTION: 1- identify as arithmetric,geometric or neither 2-write the rule for the nth term- 3-find a1. 4,10,18,28,40 the answer is neither but whats the rest?

Question 185088: 1- identify as arithmetric,geometric or neither
2-write the rule for the nth term-
3-find a1.
4,10,18,28,40
the answer is neither but whats the rest?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1- identify as arithmeic,geometric or neither
4,10,18,28,40
-----
2-write the rule for the nth term-
a(n) = n^2 + 3n
----------------------
3-find a(1) = 1^2 + 3*1 = 1 + 3 = 4
-----------------------
the answer is neither but whats the rest?
-----------------------
Cheers,
Stan H.

RELATED QUESTIONS
``write the first six terms of the sequence 2. an=(n+1)^3 4. an=n/n+3 write the... (answered by CubeyThePenguin)

write the first six terms of the sequence 2. an=(n+1)^3 4. an=n/n+3 write the next (answered by richard1234)

Write the rule for the nth term of the geometric sequence a1=8,... (answered by MathLover1)

decide whether the sequence is arithmetic, geometric, or neither. Explain your answer. (answered by KMST)

(144,108,81,60.75,...) Is the sequence arithmetic, geometric, or neither? -I said... (answered by josgarithmetic,jim_thompson5910)

Find the nth term of: 4, 10, 18, 28,... (answered by josgarithmetic)

Write the first five terms of the geometric sequence. Find the common ratio and write the (answered by greenestamps)

Hi. this lesson is really confusing me and I need help with it. These questions are... (answered by ikleyn)

can someone please help?! ive tried a bunch of times and cant find the answers!!!... (answered by solver91311)