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Which of the following is equivalent to 4.2 x 10-5?
  • a)
    0.000042
  • b)
    0.00042
  • c)
    42,000
  • d)
    420,000
  • e)
    4,200,000
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of the following is equivalent to 4.2 x 10-5?a)0.000042b)0.00042...
The correct answer is F. The expression 4.2 × 10−5 is in scientific notation. The −5 exponent means that the decimal point has been moved five spaces to the right of its original position. So, move the decimal five places to the LEFT back to its original position: 0.000042.
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Which of the following is equivalent to 4.2 x 10-5?a)0.000042b)0.00042c)42,000d)420,000e)4,200,000Correct answer is option 'A'. Can you explain this answer?
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