A typical healthy blood cell has a diameter of about 0.000008 meters. A red blood cell with a diameter higher than this signals an illness. Which red blood cell is larger than the average size of a healthy blood cell?(1 point)

Question

Responses

8×10−9
8 times 10 superscript negative 9 baseline

8×10−6
8 times 10 superscript negative 6 baseline

8×10−7
8 times 10 superscript 7 baseline

8×10−5

Answer 1

To determine which red blood cell diameter is larger than the average size of a healthy blood cell, we need to compare the given options to the average healthy blood cell diameter of 0.000008 meters, which can be expressed in scientific notation as \(8 \times 10^{-6}\) meters.

Now let's evaluate the options:

1. \(8 \times 10^{-9}\): This is smaller than \(8 \times 10^{-6}\).
2. \(8 \times 10^{-6}\): This is equal to \(8 \times 10^{-6}\).
3. \(8 \times 10^{-7}\): This is also smaller than \(8 \times 10^{-6}\).
4. \(8 \times 10^{-5}\): This is larger than \(8 \times 10^{-6}\).

Thus, the only red blood cell diameter that is larger than the average size of a healthy blood cell is:

\(8 \times 10^{-5}\).