Question

The diameter of a human hair is 9x10^-5 meters. The diameter of a spider's silk is 3x10^-6 meters. How much greater is the diameter of a human hair than the diameter of a spider's silk? Write your answer in scientific notation.

Answer 1

The diameter of a human hair is approximately 57 times greater than the diameter of a spider's silk.

Step-by-step explanation:

The diameter of a human hair is 9-5 meters, which can be written as 60 µm. The diameter of a spider's silk is 3-6 meters, which can be written as 3 µm. To determine how much greater the diameter of a human hair is than the diameter of a spider's silk, we subtract the diameter of the spider's silk from the diameter of the human hair.

60 µm - 3 µm = 57 µm

Therefore, the diameter of a human hair is 57 times greater than the diameter of a spider's silk.

Answer 2

3×10¹

Step-by-step explanation:

(9×10⁻⁵ m) / (3×10⁻⁶ m)

(9/3) (10⁻⁵ / 10⁻⁶)

3×10¹