Question

A certain human red blood cell has a diameter of 0.000007 meters.Write an expression that represents this diameter, in meters in scientific notation. Equation

Answer 1

By definition we have to:
Scientific notation, also called pattern or notation in exponential form, is a way of writing numbers that accommodate values too large or too small to be written in a conventional manner.
The use of this notation is based on powers of base 10.
A number written in scientific notation follows the following pattern:

`m * 10 ^ e`
The number m is called "mantissa" and e the "order of magnitude"
For this case we have:
0.000007
Using the definition, we have that the measure of the diameter in scientific notation is:

`0.000007 = 7 * 10 ^ {-6}`
Answer:
An expression that represents this diameter, in meters in scientific notation is:

`7 * 10 ^ {-6}`