Evaluate \(3.0\times 10^1 - 2.8\times 10^{-1}\)leaving the answer in standard form
MATHEMATICS
WAEC 1997
Evaluate \(3.0\times 10^1 - 2.8\times 10^{-1}\)leaving the answer in standard form
- A. \(2\times 10^{-1}\)
- B. \(2\times 10^{2}\)
- C. \(2.972 \times 10^{1}\)
- D. \(2.972 \times 10^{2}\)
Correct Answer: C. \(2.972 \times 10^{1}\)
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