Question

Simplify the expression log(12)...base is 10...how do you find without using a calculator?

Answer 1

Do they tell us any decimal values for some other logs? Sometimes problems also give that.

Answer 2

Are you sure they want it "simplified"? or maybe written as a combination other logs, e.g, log(2) and log(3)?

Answer 3

If now, we can do some things to simplify it. The 12 is not any power of 10, so it's not going to give us a nice whole number answer or a fraction. But we can do is use some properties of logarithms to break it down.

Answer 4

if not*

Answer 5

log (square root of 10) =.5 That has nothing to do with the problem but at least it gives you some idea as to which numbers convert to logs easily.

Answer 6

maybe i wrote it wrong

Answer 7

One of them tells us that a multiplication becomes an addition of logarithms.
Log xy= log x + log y
Have you see that before?

Answer 8

Yes, probably. Please check!

Answer 9

Thanks Debbie - it's been corrected

Answer 10

using the properties of logarithms with numerical values. Find the logarithm

Answer 11

the examples they give are easy...then they throw a boomerang and me

Answer 12

and = at

Answer 13

oh ok

Answer 14

Here are properties that you might use for this problem:

\[\Large \log(MN)=\log M+\log N\]
\[\Large \log M^a=a\log M\]

Answer 15

It says numerically values, so I'm thinking somewhere they tell us something like
log3=...
or
log 2 = ...

Answer 16

\[\log_{10} 12\] without using a calculator

Answer 17

Can you tell us one of the examples?

Answer 18

:o

Answer 19

Here's all I think we can really do.
12 breaks down into 3 times 4

Answer 20

log5(25) i know this is 2 which is not that hard...nothing complicated