Answer:
The proper scientific notation for 142.00 is 1.42 x 10^2.
Explanation:
Scientific notation is utilized to express large numbers in a smaller way. Basically, is expressed as a value from -10 to 0 or 0 to 10 without including -10 and 10, fallowing a multiplication by a power of 10, and the exponent values is the number of decimal places. For example, the scientific notation of 1,000 is 1 x 10^3, and it means one multiplied by three times 10 or [1 x 10 x 10 x 10].