WAEC Further Mathematics 2009 Question 10

Question 10

Indices and Logarithms

Given that 2x = 0.125, find the value of x.

  1. A.0
  2. B.−1
  3. C.−2
  4. D.−3
Show the answer and explanation

Answer: D (−3)

Explanation

0.125 = 1/8 = 2−3, so x = −3.