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An astronomical unit (AU) is defined as the distance from the Earth to the Sun, approximately 150,000,000 km, or 1.5 x 10^8 km. In meters, this is 1.5 x 10^11. To convert a distance from meters to AU, one should divide the distance by 1.5 x 10^11. This corresponds to the third option.

Applying the disinfectant once removes 90% of the bacteria, leaving 10% remaining.

Applying it a second time eliminates 90% of that remaining 10%, so you calculate 10 minus 90% of 10 to find the leftover bacteria after two applications.





This results in only 1% of the bacteria still being present, meaning that 99% of the original bacteria have been eradicated.

The correct answer is D, as it encompasses all the options listed.

Management Information Systems

Its primary function involves the gathering and administration of data. Daily information is compiled and examined, making it easily accessible to managers and decision-makers. The system can simulate various potential scenarios to strengthen business choices. Additionally, it offers accurate sales forecasts by pinpointing the elements that influence sales and examining how these factors interrelate over time as business strategies are implemented.

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