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3 years ago

9

The radius of earth is 6,370,000m. Express this measurement in km in scientific notation with the correct number of significant

digits.

2 answers:

Aliun [14]3 years ago

6 0

Answer:

$6.3\times10^3 km$

Explanation:

First, convert meters to kilometers:

$6370000m*\frac{1km}{1000m} =6370km$

Now, express it using scientific notation following the next steps:

The decimal point moves to the left as many spaces until it reaches the right of the first digit.

The coefficient is written, followed by the multiplication sign.

Base 10 is written with the exponent equal to the number of spaces that the comma moves.

Therefore:

$6370km=6.3\times 10^3km$

oee [108]3 years ago

3 0

6.37km x 10³ . 6370000m/1000= 6370km then put in scientific notation.

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