Janiya is taking a road trip. The distance she plans to travel can be written as 3×10^2 kilometers, 3×10^5 meters, 3×10^7 centimeters, or 3×10^8 millimeters. Which distance uses the most appropriate units?(1 point)

Question

Responses

3×10^7 centimeters
3 times 10 to the 7th power centimeters

3×10^5 meters
3 times 10 to the 5th power meters

3×10^8 millimeters
3 times 10 to the 8th power millimeters

3×10^2 kilometers
3 times 10 squared kilometers

Answer 1

To determine the most appropriate units for Janiya's road trip distance, we need to consider the distance represented in different units and see which one is most commonly used for road trips.

• 3×10^2 kilometers = 300 kilometers
• 3×10^5 meters = 300,000 meters (which is also 300 kilometers)
• 3×10^7 centimeters = 30,000,000 centimeters (which is 300 kilometers but expressed in a less practical unit for road trips)
• 3×10^8 millimeters = 300,000,000 millimeters (which is also 300 kilometers but in a very small unit)

Given these conversions, the distance of 3×10^2 kilometers (300 kilometers) is the most appropriate unit for a road trip.

Thus, the correct response is: 3×10^2 kilometers 3 times 10 squared kilometers