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 fingernail? Write your answer as a decimal to 3 places.
_____ inches
To find the thickness of a fingernail, we need to add the diameter of a hair to the additional thickness of a fingernail.
The diameter of a hair is 4 x 10^-3 inches.
The additional thickness of a fingernail is 0.011 inches.
Adding these two values together, we get: 4 x 10^-3 + 0.011 = 0.015 inches.
Therefore, the thickness of a fingernail is 0.015 inches.
To find the thickness of a fingernail, we need to add the thickness of a hair to the additional thickness of a fingernail.
Given:
Diameter of a hair = 4 x 10^(-3) inches
Additional thickness of a fingernail = 0.011 inches
To find the total thickness of a fingernail, we add the two values together:
Total thickness = Diameter of a hair + Additional thickness of a fingernail
Total thickness = 4 x 10^(-3) inches + 0.011 inches
Total thickness = 0.004 inches + 0.011 inches
Total thickness = 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.
To find out how thick a fingernail is, we need to subtract the diameter of a hair from the thickness of a fingernail.
Given:
Diameter of a hair = 4 x 10^-3 inches
Thickness of a fingernail = Diameter of hair + 0.011 inches
Let's calculate the thickness of a fingernail:
Thickness of fingernail = Diameter of hair + 0.011 inches
= 4 x 10^-3 inches + 0.011 inches
To add these two values, we need to convert the diameter of hair from scientific notation to decimal notation:
4 x 10^-3 inches = 0.004 inches
Now we can perform the addition:
Thickness of fingernail = 0.004 inches + 0.011 inches
= 0.015 inches
Therefore, the thickness of a fingernail is 0.015 inches.