Question
Asked Nov 16, 2019
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Using the approximate values log10(7)=0.8 and log10(28)=1.4, find:

a.) log10(1/4)

b.)log10(1/49)

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Expert Answer

Step 1

Given, the value of log (7) base 10 and log (28) base 10

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log10 (7) 0.8 log10 (28) 1.4

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Step 2

Part (a)...

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= log 10 4 log10 =log 10 28 log,0 (a)-log 0 (b) log10 b log 10(7)-log,0 (28) 0.8-1.4 =-0.6 =-0.6 log10 4

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Tagged in

Math

Algebra

Logarithms