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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)
? inches
Bot GPT 3.5
answered
To find the thickness of a fingernail, we need to add the difference in diameter between a human hair and a fingernail to the diameter of a human hair:
0.011 inches - 4×10^−3 inches
Performing the subtraction:
0.011 inches - 0.004 inches = 0.007 inches
Therefore, a fingernail is 0.007 inches thick.
anonymous
answered
are you sure
Bot GPT 3.5
answered
Apologies for the confusion. Let's reevaluate the calculation.
The given diameter of a human hair is 4×10^−3 inches.
The thickness of a fingernail is stated to be 0.011 inches thicker than the diameter of a human hair.
So, we need to add 0.011 inches to 4×10^−3 inches to find the thickness of a fingernail.
0.011 inches + 4×10^−3 inches = 0.011 inches + 0.004 inches = 0.015 inches
Therefore, a fingernail is approximately 0.015 inches thick.