Evaluate log 1000 to base 10.
Answer and explanation
Correct answer: A. 3
- Step 1: 10^3 = 1000, so log 1000 = 3. Answer: 3. Why not the others: 100: That is 10 squared; the power needed is 3. 10: That is the base itself. 30: Multiplying by 10 is not how logarithms work.
Practise more Indices and logarithms.
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