Respuesta :
Since 12.68 is equal to 1.268 ∙ 10 ^ 1, the correct choice is C.
Given that the John Muir Trail measures 355,665.024 meters, while the longest straight line distance across the United States measures 4,509.382 kilometers, to calculate how many times greater the straight line distance across the United States is than the length of the John Muir in scientific notation the following calculation must be performed:
- 355,665.024 m = 355.665024 km
- 355.66 = 1
- 4,509.38 = X
- 4,509.38 / 355.66 = X
- 12.68 = X
So, since 12.68 is equal to 1.268 ∙ 10 ^ 1, the correct choice is C.
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