Juan hair grows at a rate of about 6.849x10^-4

Answer 1

The given rate of hair growth is 6.849x10^-4. To convert this scientific notation to regular decimal notation, we move the decimal point 4 places to the left, resulting in 0.0006849. Therefore, Juan's hair grows at a rate of about 0.0006849 per unit of time (e.g. per day, per month).