Question

what is the least integer n such that 1/2n <0.001?

Answer 1

is it 501

Answer 2

can you explain your breakdown please

Answer 3

i just thought that 1/1000 is 0.001 so 2n should be greater than 1000

Answer 4

ok i see where you comin from..u used logic..thanx..

Answer 5

the answer choices were 10..11..500..501

Answer 6

thanx

Answer 7

that's how'd you show it without logic

Answer 8

it shud be n>500

Answer 9

ur the best lots of thanx

Answer 10

k
just goes to show that i have not studied inequalities properly

Answer 11

battle of the brains please breakdown..so set it up as a inequality equ?

Answer 12

cool

Answer 13

and problemsolver you are correct also, only you are finding the values at which 1/2n is > the value . either way works i believe

Answer 14

well at the point where I have n<1/500 i understand..but how do I solve

Answer 15

with the given answers 10 11 500 501

Answer 16

have u studied inequaliteis

Answer 17

yes

Answer 18

is the < have an =

Answer 19

because that makes a big difference

Answer 20

ok

Answer 21

so bascially n=or <1/500..i get it..so as long as the 1/2n is less than .001 im good right??

Answer 22

ohhhhhhhhhhhhhhh I got u...mucho gracious

Answer 23

the ques is what is the least integer n such that 1/2n<.001

Answer 24

it's 501 and it would be greater than.... it's just late here

Answer 25

sorry bout that..im n new york..but thanks a lot you def helped

Answer 26

alright bed time but here you go

1/2n <1/1000
1000(2n)/2n<1000/1000(2n)
1000<2n
500<n
or
n>500

Answer 27

i kept thinking that the n was in the numerator

Answer 28

in otherwords i'm just taking the reciprocal of both sides to get the n out of the denominator.