Answer:
follow the process
Step-by-step explanation:
Use log 4= 0.602 and log 12 = 1.079 to evaluate the logarithms below.
log 48=
log 144=
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Logrithims are used in slide rulers to do math quicker. Although I used one a few times, I grew up with calculators. On a slide ruler, to multiply two number you simply add the logs of the numbers.
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So 48 is 4(12) log 4= 0.602 + log 12 = 1.079 = log 48 = 1.681
check inverse log (1.681) = 47.9733 which rounds up to 48
So 144 is 12(12) log 12 = 1.079 + log 12 = 1.079 = log 144 = 2.158
check inverse log (2.158) = 143.8787 which rounds up to 144
