Final answer:
Scientific notation requires that the number be expressed as a product of a number between 1 and 10 and a power of 10. Correct answer is not provided.
Step-by-step explanation:
The question asks for proper scientific notation, which means expressing a number as the product of a number between 1 and 10 and a power of 10. Here are the numbers expressed in the correct scientific notation: a. 345.1 × 10² becomes 3.451 × 10´. b. 0.234 × 10⁻³ becomes 2.34 × 10⁻´. c. 1,800 × 10⁻² becomes 1.8 × 10⁻².
For example, to convert 345.1 × 10² into scientific notation, we move the decimal point two places to the left to account for 10², which gives us 3.451, and then adjust the exponent on the power of 10 from 2 to 4 to account for the shift, resulting in 3.451 × 10´.