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IB Mathematics: Applications and Interpretation SL · 12.6: Exponents & Logarithms · 12.6.3

Mixed exponent and logarithm practice Problem set A Answers

Skills

    1. (a) x = 95
    2. (b) x = 4
    3. (c) x = 8.39
    1. (a) x = −12
    2. (b) x = 9
    3. (c) \(x=-\tfrac32\)
    1. (a) x = 25
    2. (b) x = 7.1
    3. (c) x = 4.73
    1. (a) x = 5
    2. (b) \(x = \frac{3}{2}\)
    3. (c) x = 13

In context

    1. (a) 80 mg
    2. (b) 49.1 mg
    3. (c) t = 8.53 hours
    1. (a) 250; 2620
    2. (b) t = 7.85 hours
    3. (c) 60%

Stretch

  1. x = 3

jmaths.xyz · AI SL · 12.6.3 Mixed exponent and logarithm practice