Question

write the first five terms of the arithmetic sequence whose nth term is given an=20n+100

Answer 1

Put n = 1 for first term
\[a_n = 20n + 100\]
Put n = 1 here:
\[a_1 = 20(1) + 100\]
\[a_1 = 20 + 100\]
\[\color{blue}{a_1 = 120}\]

Similarly by putting n = 2, 3, 4 and 5, find the 2nd, 3rd, 4th and 5th term respectively...

Answer 2

And more important thing:
\[\huge \color{green}{\textbf{Welcome To Openstudy...}}\]

Answer 3

Thank you Waterineyes. That was the same answer I got. I wanted to see if I was correct or not.

Answer 4

Then what you got as your 2nd, 3rd, 4th and 5th terms??

Answer 5

I got 120, 140, 160, 180, and 200

Answer 6

Good...

Well Done..

Keep it up..