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 finger nail? Write your answer as a decimal to 3 places

1 answer

To find the thickness of a fingernail, we need to add the thickness of the hair (4 x 10^-3 inches) to the additional thickness of the fingernail (0.011 inches).

4 x 10^-3 + 0.011 = 0.015 inches

Therefore, the thickness of a fingernail is 0.015 inches.