Question

Evaluate the infinte geometric series.

Answer 1

\[\sum_{n=1}^{\infty} (-1/2 )^{n-2}\]

Answer 2

Okay, this is an infinite solution since the top is your upper limit and the bottom is the lower limit

Answer 3

so,
-1/2^1-2 and so on - all the way to infinity - is going to be your answer

Answer 4

\[\sum_{n=1}^{\infty} 3(0.4)^{n-1}\]

Answer 5

that also and thanks keep explaining

Answer 6

1. -1/2^1-2 all the way to infinity (my answer for number 1?)

Answer 7

Same thing for this equation. Replace the n with the lower limit (1) all the way to infinity. You don't have to show the work up to infinity, just lead up to it

Answer 8

@Ket-kat so what would that be for number 2?

Answer 9

?

Answer 10

@Ket-kat whats the answer for 1 and 2, i'm confused.

Answer 11

hate that stuff

Answer 12

@15Trev can you still help me though?

Answer 13

Okay Like I said. In both equations on the left side of the stigma, replace the n with:
1,2,3,4,5,6,7,8,9,10.......... infinity
And solve the equations :)

Answer 14

i think so

Answer 15

Thanks

Answer 16

<3 No worries

Answer 17

we did this last chapter

Answer 18

FLVS? I'm doing it now xD

Answer 19

Nice so its fresh for you

Answer 20

k

Answer 21

so first u have to know that whats in parenths is ur rate

Answer 22

multiply parenths by # next to them

Answer 23

1. \[\sum_{n=1}^{\infty} (-1/2)^{n-1}\]
2. \[\sum_{n=1}^{\infty} 3(0.4)^{n-1}\]

Answer 24

like 3x.4

Answer 25

=12

Answer 26

no

Answer 27

.4

Answer 28

3x.4= 1.2 my bad

Answer 29

ya

Answer 30

now take 1 and subtract by # in ( )

Answer 31

like 1-.4

Answer 32

.6

Answer 33

forget everythng i said

Answer 34

*easily erases everything you said from brain*

Answer 35

@15Trev soooooo...?

Answer 36

wait

Answer 37

k lets do #2

Answer 38

What about 1?

Answer 39

later

Answer 40

ok

Answer 41

remember everything i siad erlier actualy

Answer 42

WTF.. ok lol :)

Answer 43

wtf = wow, that's fantastic.

Answer 44

@saifoo.khan exactly

Answer 45

Totally.

Answer 46

u can leave now

Answer 47

wats 1-.4

Answer 48

.6

Answer 49

@15Trev its .6

Answer 50

just get someone else to do it

Answer 51

i forget

Answer 52

@15trev nobody else is helping

Answer 53

well if i brought home my book i would know

Answer 54

do u hav the formula

Answer 55

No :/

Answer 56

@15Trev i just turned it in without those answers :/

Answer 57

what do u mean

Answer 58

i goota take a poop brb

Answer 59

@15Trev nvm just ill send u a link to my new question

Answer 60

k

Answer 61

@15Trev can u oovoo?

Answer 62

not now

Answer 63

@15Trev why?

Answer 64

the person im babysitting is right here

Answer 65

post link to new q

Answer 66

@15Trev ur not babysitting ur bro? and im in the middle of posting it

Answer 67

no

Answer 68

nabor

Answer 69

she likes minecraft

Answer 70

lol

Answer 71

@15Trev lol to bad both servers we like r down

Answer 72

ya

Answer 73

@15Trev so when r u done babysittin?

Answer 74

730

Answer 75

@15Trev I gotta mow the lawn, so later we can oovoo

Answer 76

k just finished babysittin