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10.4 Common Logarithms

10.4 Common Logarithms. Algebra II w/trig. Base 10 logarithms – understood base 10 if nothing is there) Evaluate each expression to four decimal places. log 50 log 18 l og 42.3 l og 0.003. II. Solve each equations or inequality. Round to four decimal places.

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10.4 Common Logarithms

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  1. 10.4 Common Logarithms Algebra II w/trig

  2. Base 10 logarithms – understood base 10 if nothing is there) • Evaluate each expression to four decimal places. • log 50 • log 18 • log 42.3 • log 0.003

  3. II. Solve each equations or inequality. Round to four decimal places. • 43x = 12 B. 73x-1 > 21

  4. C. 6x+2 = 18 D. 2x+5 = 3x-2

  5. III. Change of Base Formula For all positive numbers a, b, and n, where a≠1 and b≠1 Remember: and

  6. Evaluate: 1. log3 16 2. log3 202

  7. 3. log3 √150 4. log8 45

  8. 5. log3 150 6.

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