Question

what is significant figure and significant notation , also difference between them with an eg​

Answer 1

Significant figures are any non-zero digits or trapped zeros. They do not include leading or trailing zeros. When going between decimal and scientific notation, maintain the same number of significant figures...

In scientific notation, you move the decimal place until you have a number between 1 and 10. Then you add a power of ten that tells how many places you moved the decimal. In scientific notation, 2,890,000,000 becomes 2.89 x 109.