Question

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

Answer 1

[AI-generated answer — Bot GPT 3.5]

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.

Answer 2

are you sure

Answer 3

[AI-generated answer — Bot GPT 3.5]

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.