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)
To find the thickness of a fingernail, we need to add the thickness of a hair (4×10−3 inches) to the additional thickness of a fingernail (0.011 inches).
So, the thickness of a fingernail is 4×10−3 inches + 0.011 inches = 0.015 inches.
Therefore, the thickness of a fingernail is 0.015 inches.
To determine the thickness of a fingernail, we need to subtract the diameter of a human hair from the increased thickness of the fingernail.
Given:
Diameter of a human hair = 4×10^(-3) inches
Increased thickness of the fingernail = 0.011 inches
To find the thickness of the fingernail, we subtract the diameter of the human hair from the increased thickness of the fingernail:
Thickness of the fingernail = Increased thickness of the fingernail - Diameter of a human hair
Thickness of the fingernail = 0.011 inches - 4×10^(-3) inches
Now, let's do the calculation:
Thickness of the fingernail = 0.011 - 0.004 = 0.007
Therefore, the thickness of a fingernail is 0.007 inches (rounded to 3 decimal places).
To find the thickness of a fingernail, we need to add the diameter of a human hair to the additional thickness of a fingernail.
The diameter of a human hair is given as 4×10^(-3) inches.
The additional thickness of a fingernail is given as 0.011 inches.
Adding these two values together, we get:
4×10^(-3) + 0.011 = 0.0114
Therefore, the thickness of a fingernail is approximately 0.0114 inches.