Question

6.25×10^6−4.73×10^6 Express your answer in scientific notation to 2 decimal places.

Answer 1

The average distance from Earth to Mars is 2.25×108 km, and the distance from Earth to Neptune is 4.3514×109 km. How much farther is Neptune from Earth than Mars? Express your answer in scientific notation. Do not round your answer.(1 point)

Answer 2

Human hair grows at a rate of about 6.849×10^−4 cm per hour to 2.329×10^−2 cm per hour. The rate depends on gender, genetics, age, and health. Find the difference between the high end and the low end of the range. Express your answer in scientific notation. Do not round your answer.(1 point)

Answer 3

1.52x10^6

Answer 4

The distance from Neptune to Earth is 4.3514x10^9 km, and the distance from Mars to Earth is 2.25x10^8 km. To find how much farther Neptune is from Earth than Mars, we subtract the distance to Mars from the distance to Neptune:

4.3514x10^9 km - 2.25x10^8 km = 4.3514x10^9 km - 0.225x10^9 km

This simplifies to:

4.3514x10^9 km - 0.225x10^9 km = 4.1264x10^9 km

So, Neptune is 4.1264x10^9 km farther from Earth than Mars.

Answer 5

The high end of the range is 2.329x10^-2 cm per hour, and the low end is 6.849x10^-4 cm per hour. To find the difference between the high end and the low end, we subtract the low end from the high end:

2.329x10^-2 cm per hour - 6.849x10^-4 cm per hour

This can be simplified to:

2.329x10^-2 cm per hour - 6.849x10^-4 cm per hour = 2.329x10^-2 cm per hour - 0.006849x10^-2 cm per hour

This further simplifies to:

2.329x10^-2 cm per hour - 0.006849x10^-2 cm per hour = 2.322151x10^-2 cm per hour

So, the difference between the high end and the low end of the range is 2.322151x10^-2 cm per hour.