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What is the scientific notation for distance from Earth to Alpha Centauri? The distance from Earth to the nearest star outside the solar system is approximately 25,700,000,000,000 miles.

Answer 1

# 2.57 xx 10^13#

As far as current knowledge allows, Alpha Centauri is the nearest star; hence, the distance to Alpha Centauri is 25700 000 000 000.

Putting this value into scientific notation involves moving the decimal next to the last digit to the left (2) and multiplying by a power of ten that makes the numbers equal. There are 13 decimal places from two to the last zero so the decimal point has to be moved 13 times or #10^13# This means that

# 25700 000 000 000 = 2.57 xx 10^13#

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Answer 2

Hunter Arthur

The scientific notation for the distance from Earth to Alpha Centauri is approximately 25.7 trillion miles, expressed as 2.57 x 10^13 miles.

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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.