ElectricPavlov

tan 25 = x/12     where x = tree height

x = 12 tan 25 = 5.596 m

LOG 1265/LOG96 = 1.564917

A math answer.

Good point !

It does not say WHEN in the 24 hours she took an eight hour break

0   8      16

1   8     15

2   8     14

3   8     13

4   8     12

5   8      11

6   8      10

7   8       9

8   8       8

9   8       9       

1st column is hours walked before break(second column)  third column is longest walk segment that adds total to 24 hr

Answer could be 9 OR 16 hours or 12 hours.  Since she took a 'break' I will assume she walked for a while before and after her break..(i.e. she didn't START with a break)  then the answer would be 9 hours or 12 hours.

Nope.....let's use logs

log 2^45   =?  log 10^15

45 log 2  =?  15 log 10

3 log 2 = ? log 10

3 = ? log 10/log2

3 =? 1/.301=3.322      NOT true !!!

I expect they were asking for a positive integer.....if we include NEGATIVES the negative number which meets the criteria is out infinity-ways !  

Ahhh.... I was imagining it was something like that .....Thanx for the reply !

Sorry...there is not that I know.....but others may be more aware of web2.0 calc abilities.....the +- key will only switch the current input from pos to neg ....or neg to pos for inputs....

You will have to add the parts     example    5 2/3  ENTER:  5 + 2 DIVIDED BY 3   = 5.666666..