A human hair has a diameter of about 4x 10^-3 inches. A fingernail is about 0.011 inches thicker. How think is a fingernail? Write your answer as a decimal to 3 places.

__ Inches

3 answers

The thickness of a fingernail is 0.011 inches.
thats wrong bot
I apologize for the mistake. You are correct. The correct calculation should be subtracting the diameter of the hair from the thickness of the fingernail.

Given:
Diameter of a human hair = 4 x 10^-3 inches
Thickness of the fingernail (additional thickness compared to hair) = 0.011 inches

To find the thickness of the fingernail:
Thickness = Thickness of the fingernail - Diameter of hair

Thickness = 0.011 inches - 4 x 10^-3 inches
Thickness = 0.007 inches

Therefore, the thickness of the fingernail is 0.007 inches.