To find the thickness of a fingernail, we need to add the diameter of a hair to the additional thickness of a fingernail.
The diameter of a hair is 4 x 10^-3 inches.
The additional thickness of a fingernail is 0.011 inches.
Adding these two values together, we get: 4 x 10^-3 + 0.011 = 0.015 inches.
Therefore, the thickness of a fingernail is 0.015 inches.
A human hair has a diameter of about 4 x 10^-3 inches. A fingernail is about 0.011 inches thicker. How thick is a fingernail? Write your answer as a decimal to 3 places.
_____ inches
1 answer
3 answers