Question

Using log2=.3010 and log5=.6990 compute
log2000000.


100000/5 = 20000 so I just did 20000*.699 = 13980 and then added .301 which equals 13980.3

^I know that was wrong

Answer 1

log2000000 = log 2 + log 10^6 = 6.301

Answer 2

or,

2,000,000 = 10,000,000/5, so
log 10^7 - log5 = 7-.699 = 6.301

Answer 3

thanks that makes sense