Question

a1=0.25 a5=446.256625 r=6.5 geometric series . help?

Answer 1

@satellite73 why don't you guide her?

Answer 2

@Mertsj

Answer 3

i don't know what the question is
do you?

Answer 4

if i know, i guide her , not tag you, ok?

Answer 5

@daniellle what is the question for this one?

Answer 6

find sn for the given geometric series

Answer 7

Actually the fifth term is 446.265625.

Answer 8

what happen, say that and that's it?

Answer 9

i dont get it

Answer 10

\[S _{n}=\frac{a _{1}(1-r^n)}{1-r}\]

Answer 11

Plug into that formula if you want the sum of you geometric sequence

Answer 12

can you show me step by step. every time i do it i get a wrong answer,

Answer 13

Post your work and I will troubleshoot for you.

Answer 14

what does a5 mean?a5 is not in the formula,

Answer 15

It means the 5th term of the sequence

Answer 16

What does the problem ask you to find? Your post does not say.

Answer 17

"find sn for the given geometric series a1=0.25, a5=446.265625 r=6.5"

Answer 18

So plug into the formula.

Answer 19

would n be 446.265625 ?

Answer 20

n is the number of terms.

Answer 21

which is 5 right ?

Answer 22

yes

Answer 23

thank you i get it now

Answer 24

What did you get?

Answer 25

527.36

Answer 26

would i use the same formula to find a1 ?