Which of the following describes the number of significant digits in a measurement? select all that apply.
A) all of the digits that are known exactly
B) all of the digits that are known exactly plus one in certain digit
C) A way to communicate the precision of a measurement
![Which of the following describes the number of significant digits in a measurement select all that apply A all of the digits that are known exactly B all of the class=](https://us-static.z-dn.net/files/d9b/ab49d0a8c2495b3d8e3b5af494ae9dd5.png)