The length of a micrometer is approximately 0.00003937 inch. How would you express this in scientific notation?

Answer 1

Genesis Allen

The length of a micrometer, approximately 0.00003937 inch, expressed in scientific notation is 3.937 x 10^(-5) inches.

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Answer 2

Eva Abramson

#3.937*10^-5#

The decimal point is moved 5 places to the right, so #10^-5#. This means 1/10,000’ or 0.00001.

Notice that, if you put a zero before the decimal in the original number, the raised power is the number of zeroes before the non-zero digits.

Scientific notation is always stated as a digit, then the decimal, then the rest of the digits, then the raised power.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.