Powers standard form and interest

Powers standard form and interest

IP 2
4 marks
TGM Original Questions

Answer the following questions.

  1. Evaluate \(3^4\times3^{-6}\). Give your answer as a fraction.[1]
  2. Write \(0.000072\) in standard form.[1]
  3. \(\$2000\) is invested at \(5\%\) compound interest per year, compounded annually. Find its value after \(2\) years. Give your answer to the nearest cent.[2]

Solution:

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Answer:(a) \(\dfrac19\) (b) \(7.2\times10^{-5}\) (c) \(\$2205.00\)

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