Question

for the sequence 2,9,16,23..., find n if a_n=65
a. 10
b. 11
c.9
d. 8

** the n is little**

Answer 1

An=a+d(n-1)

where An is 65
a is the first term of the sequence
n is what you wanna work out
d is the difference between each number

Answer 2

Give it a go and I will help you along the way if you go wrong

Answer 3

2,9,16,23.
9=7+2
16=7+9
23=7+16

Answer 4

Here is the sequence from n=1 to n=10
{{1, 2}, {2, 9}, {3, 16}, {4, 23}, {5, 30}, {6, 37}, {7, 44},
{8, 51}, {9, 58}, {10, 65}}
What is the answer to your problem?

Answer 5

i got 10. thank you! :)