1.   Express 47.5 × 10-5 in scientific notation.
    A. 0.475 × 10-3 B. 4.75 × 10-6
    C. 4.75 × 10-4 D. 475 × 10-6
    Hint

  2.   Express 0.034 × 107 in scientific notation.
    A. 3.4 × 109 B. 34 × 104
    C. 3.4 × 105 D. 0.34 × 106
    Hint

  3.   Evaluate (3.2 × 10-5)(5.4 × 109). Express the result in scientific notation.
    A. 17.28 × 104 B. 1.728 × 103
    C. 0.1728 × 106 D. 1.728 × 105
    Hint

  4.   What is the value of (4.4 × 109)(3 × 10-5) in scientific notation?
    A. 1.5 × 104 B. 1.32 × 105
    C. 1.32 × 104 D. 1.32 × 106
    Hint

  5.   Express the result of in scientific notation.
    A. 3.43 × 102 B. 3.43 × 103
    C. 343 D. 3430
    Hint



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