Inactive Tutor answered • 03/29/17
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logb(15b) = logb(15) + logb(b) = logb(3·5) + 1 = logb(3) + logb(5) + 1 ≈ 2 + 5 + 1 = 8
Ashaunna M.
asked • 03/29/17approximate logarithm
approximate logb 15b given that logb3≈2 and logb5≈5
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