SOLUTION: ok i have done 21 of these and here are the ones i cant get... Use log9^7=0.8856 and log9^4=0.6309 to evaluate each expression log9^28 log9^49 log9^144 log9^15.75

Question 19362: ok i have done 21 of these and here are the ones i cant get...
Use log9^7=0.8856 and log9^4=0.6309 to evaluate each expression
log9^28
log9^49
log9^144
log9^15.75
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
i shant write the 9..assume it is there: (oh yes, using ^ is misleading, as this means "power"...your questions do not have powers in them, i believe.

1. log 28
-->
log (7*4)
log7 + log4
0.8856 + 0.6309
= whatever

2. log49
-->
log(7*7)
log7 + log7
2log7
2(0.8856)
= whatever

etc. You try the next 2.

jon.

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