Human hair grows at a rate of about 6.849x10^-4 cm per hour to 2.329x10^-2cm per hour. The rate depends on gender, genetics, age, and health. Find the difference between the high end and the low end of the range. Express your answer in scientific notation. Do not round your answer.

Answer 1

To find the difference between the high end and low end of the range, we subtract the low end from the high end:

(2.329x10^-2 cm/hr) - (6.849x10^-4 cm/hr)

To subtract these numbers in scientific notation, the exponents must be the same. So let's convert the low end to the same exponent as the high end:

(2.329x10^-2 cm/hr) - (6.849x10^-4 cm/hr) = (2.329x10^-2 cm/hr) - (0.6849x10^-2 cm/hr)

Now, we can subtract the numbers:

(2.329 - 0.6849)x10^-2 cm/hr = 1.6441x10^-2 cm/hr

So the difference between the high end and the low end of the range is 1.6441x10^-2 cm/hr.