To find the thickness of a fingernail, we will add the thickness of a hair (4×10^−3 inches) to the additional thickness of a fingernail (0.011 inches):
4×10^−3 + 0.011 = 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.
A human hair has a diameter of about 4×10^−3 inches. A fingernail is about 0.011 inches thicker. How thick is a fingernail? Write your answer as a decimal to 3 places.(1 point
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