Final answer:
The number 3.021 • 10^-3 is written in scientific notation. Scientific notation is used for expressing numbers compactly, and numbers in scientific notation can be converted to standard notation by removing the power of ten.
Step-by-step explanation:
The number 3.021 • 10-3 is written in scientific notation. Scientific notation is used for expressing large or small numbers compactly and consists of a number between 1 and 10 multiplied by a power of 10. However, to further clarify to the student, let us demonstrate how to rewrite numbers in proper scientific notation.
- For example, 345.1 × 102 would be written as 3.451 × 104 in proper scientific notation because the decimal is moved two places to the left.
- The number 0.234 × 10-3 would be correctly written as 2.34 × 10-4.
- Lastly, 1,800 × 10-2 should be written as 18 × 100 or simply 18, since any number raised to the power of zero is 1.
To express numbers in standard notation, they need to be converted from scientific notation to a regular number without exponents. For example:
- 7.11 × 10-2 in standard notation is 0.0711.
- 9.18 × 102 in standard notation is 918.
When performing calculations that involve scientific notation, it is often necessary to use a calculator that can handle scientific notation input properly.
the complete Question is given below:
the number 3.021 • 10^-3 is written in
A. expanded form
B. scientific form
C. standard form