Question 8
LogarithmsIf log102 = 0.3010 and log107 = 0.8451, evaluate log10280.
- A.3.4471
- B.2.4471
- C.1.4471
- D.1.4071
Show the answer and explanation
Answer: B (2.4471)
Explanation
280 = 22 × 7 × 10, so log 280 = 2(0.3010) + 0.8451 + 1 = 2.4471.
If log102 = 0.3010 and log107 = 0.8451, evaluate log10280.
Answer: B (2.4471)
280 = 22 × 7 × 10, so log 280 = 2(0.3010) + 0.8451 + 1 = 2.4471.