SOLUTION: The first term is 0; the second term is 3. What is the eleventh term in the sequence

Algebra ->  Sequences-and-series -> SOLUTION: The first term is 0; the second term is 3. What is the eleventh term in the sequence      Log On


   



Question 1154947: The first term is 0; the second term is 3. What is the eleventh term in the sequence
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
incomplete description

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

The first term is 0; the second term is 3. What is the eleventh term in the sequence
if the sequence is arithmetic
difference between first term and the second term is +d=3
a%5B1%5D=0
a%5B2%5D=3
nth term formula will be:
a%5Bn%5D=a%5B1%5D%2B%28n-1%29%2Ad.......since a%5B1%5D=0 and d=3
a%5Bn%5D=0%2B%28n-1%29%2A3
a%5Bn%5D=%28n-1%29%2A3 where n=1,2,3,....

check the formula for given terms
n=1
a%5B1%5D=%281-1%29%2A3=0->true
n=2,
a%5B2%5D=%282-1%29%2A3=1%2A3=3->true
then 11th term will be:

n=11,
a%5B11%5D=%2811-1%29%2A3=10%2A3=30