Given the arithmetic sequence an = 2 − 5(n + 1), what is the domain for n?

All real numbers

All integers where n ≥ 1

All integers where n 1

All integers where n ≥ 2

Question

Given the arithmetic sequence an = 2 − 5(n + 1), what is the domain for n?

 All real numbers

 All integers where n ≥ 1

 All integers where n > 1

 All integers where n ≥ 2

mathstudent55 · Answer

Usually you start with n = 1 and go up using only integers.

anonymous · Answer

that means? idk im bad at math

lucaz · Answer

well, that's true, but it doesn't say it is the case, I would choose all real numbers

mathstudent55 · Answer

n is equal to or greater than 1

anonymous · Answer

oh the little symbol thank you so much!

anonymous · Answer

idk wat to choose now

anonymous · Answer

The population of a local species of dragonfly can be found using an infinite geometric series where a1 = 30 and the common ratio is . Write the sum in sigma notation and calculate the sum that will be the upper limit of this population.

anonymous · Answer

how about this?

anonymous · Answer

i really need help

anonymous · Answer

or this

anonymous · Answer

The answer to the first was  All integers where n ≥ 1 :)