7300.00 has how many significant digits?

1 Answer
May 21, 2018

There are six significant digits.

Explanation:

Here are the rules you need for answering this question.

  1. Non-zero digits are always significant. This rule tells us that #7# and #3# are significant digits (#color(red)(73)00.00#).

  2. Trailing zeroes between a significant digit and a decimal point are significant. This gives us two more significant digits (#color(red)(73)color(blue)(00).00#).

  3. Trailing zeroes to the right of a decimal point are significant. This gives us two more significant digits (#color(red)(73)color(blue)(00.)color(orange)(00)#).

Thus, the number 7300.00 has six significant digits.