Question

check my answer! logarithm question

Answer 1

ive gotten different answers for this one so im not sure. how would you solve this one @Nnesha

Answer 2

actually nevermind, im pretty sure im correct.

Answer 3

huh ??

Answer 4

it is the same question that we just solved

Answer 5

no! that's not correct i just told you ;-;

Answer 6

what! i thought i did it right!

Answer 7

okay i added 1 to both sides, then i got 5x=4. then took log of 5 and added base of 10 to the 4

Answer 8

10^4 is 10000

Answer 9

oh my bad, i attached the wrong picture!

Answer 10

what are you talking about ?

Answer 11

_-_ i see

Answer 12

-.-

Answer 13

this is the one im talking about, my bad.

Answer 14

show ur work please that's not right

Answer 15

i stated it above^ added 1, added base of 10, took log of 5 and divided by 5

Answer 16

nah nah nah
it's log (5x-1) you CAN'T Break the rules

Answer 17

ooh okay my bad. they didnt add the parenthesis! it wasnt clear! hah

Answer 18

-1 is in the parentheses remember first question where you have to change exponential to log form
so now convert log to exponential form

Answer 19

ohh okay so i get 5x-1=e^3

Answer 20

which is 5x=21.085 then divide by 5 and get 4.217

Answer 21

hmm but that isnt an option

Answer 22

nope have to change it into exponential form

Answer 23

look at ur first post where i post exponential and log stuff
i can't use colors here :D

Answer 24

what should the equation look like then?

Answer 25

http://openstudy.com/users/sammyjpod#/updates/555e0001e4b0dee2e68ddcea this one read my comments :-)

Answer 26

so do i want it in b^x=y form?

Answer 27

yes !! right

Answer 28

okay so do i use e at all?

Answer 29

don't need e for this
you have to use e to cancel out "ln"(natural log) not his one

Answer 30

this*

Answer 31

ah okay. so to make it b^x=y.. does the 5x-1 go in place of y?

Answer 32

yes right

Answer 33

okay and 3 goes in place of x?

Answer 34

yes right

Answer 35

and \[\log = \log_{10}\]

Answer 36

so b^3=5x-1, and b is 10?

Answer 37

yes right you got it

Answer 38

okay so 1000=5x-1 then add 1 and divide by 5 to get 200. thank you!

Answer 39

np

Answer 40

2000 was the correct answer.

Answer 41

what but HOW ?

Answer 42

1001 divide by 5 =x