Which statements represent the rules of significant figures? Check all that apply. The integers 1, 2, 3, 4, 5, 6, 7, 8, and 9 are always significant.
All numbers to the right of the decimal point are always significant. Zeros to the left of a decimal point and in a number greater than or equal to 10 are always significant.
All zeros are significant numbers.
Zeros in between numbers are always significant.