Question

Help lol (I have no idea on how to do this)
The sequence a(letter n under the a) = 1000(1.03)^n describes the amount of money in an interest-earning account where n is the number of years passed after the account is open opened.

A. $11940.5
B. $1125.51
C. $1159.27
D. $1229.87

Answer 1

do you have more to the question?

Answer 2

sadly no that's all there is to that

Answer 3

Do I find n?

Answer 4

oh. is this not a multiple choice question?
does this question just have 4 parts?

Answer 5

well it is a multi choice, but this question is very confusing lol

Answer 6

i dont think you can find any amount unless you are given n, or the year the account is open

Answer 7

omg xD soo confusing ok can we do another one?

Answer 8

yea. i think we dont have enough info to solve. what's your other problem?

Answer 9

ok thanks and here ya go:

What is the domain of the sequence?


2, 10, 50, 250, 1250

A: 2, 10, 250, 1250 <--- (I think this one but I'm just just used to range and domain on coordinates)

B: 2, 3, 4, 5, 6

C: 2, 10, 50, 1250

D: 1, 2, 3, 4, 5

Answer 10

oops c is 2, 8, 40, 200, 1000

Answer 11

no.
domain of sequence are counting numbers: 1,2,3,4,5,...

all the other choices are range of sequence, or the terms

Answer 12

so D?

Answer 13

ok, how about another one?

Answer 14

yup. and sure

Answer 15

Write the first five terms of the sentence.

\[a _{n} = (-2)^{2}\]

Answer 16

is your question correct?

Answer 17

https://k12va.aplusanywhere.com/R85Statics/media/pictures/algebra%20ia/4.3.3/test/05/1419028113353/1366x768/1419028113353.png

Answer 18

oops I put 2 not n sorry

Answer 19

ok. much better.
to find first term. plug in 1 into n.
to find 2nd, plug in 2 to n
to find 3rd, plug in 3 into n.
and keep going until 5

Answer 20

oh wow easier than I Thought lol thanks! :D one more?

Answer 21

sure

Answer 22

Which recursive rule describes the sequence?
3, 1, 5, -3, 13, ...

A:
\[a _{1} = 3, a _{n} = -2a_{n-1} +7\]
B:
\[a _{1} = 3, a _{n} = 7a_{n-1} +2\]
C:
\[a _{1} = -2, a _{n} = 3a_{n-1} +7\]
D:
\[a _{1} = -2, a _{n} = 7a_{n-1} +3\]

Answer 23

well you can eliminate C and D because the first term is 3
so
a1=3

Answer 24

then i recommend plugging into the equation and see which one fits
lets try the first one



and look, its the second term in your sequence so this is probably your asnwer