Calculate 6.25×106−4.73×106. Express your answer in scientific notation to 2 decimal places. (1 point)
9 answers
1.52×106
Calculate 6.25×106−4.73×106. Express your answer in scientific notation to 2 decimal places. (1 point)
The calculation is:
6.25×10^6 - 4.73×10^6
= (6.25 - 4.73) × 10^6
= 1.52 × 10^6
Therefore, the answer in scientific notation to 2 decimal places is 1.52×10^6.
6.25×10^6 - 4.73×10^6
= (6.25 - 4.73) × 10^6
= 1.52 × 10^6
Therefore, the answer in scientific notation to 2 decimal places is 1.52×10^6.
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)
To find out how much farther Neptune is from Earth than Mars, we need to subtract the distance from Earth to Mars from the distance from Earth to Neptune.
Distance from Earth to Neptune minus distance from Earth to Mars:
4.3514×10^9 km - 2.25×10^8 km
This can be written as: (4.3514 - 0.225) × 10^9 km
Simplifying:
4.3514 × 10^9 km - 0.225 × 10^9 km
= 4.1264 × 10^9 km
Therefore, Neptune is 4.1264 × 10^9 km farther from Earth than Mars.
Distance from Earth to Neptune minus distance from Earth to Mars:
4.3514×10^9 km - 2.25×10^8 km
This can be written as: (4.3514 - 0.225) × 10^9 km
Simplifying:
4.3514 × 10^9 km - 0.225 × 10^9 km
= 4.1264 × 10^9 km
Therefore, Neptune is 4.1264 × 10^9 km farther from Earth than Mars.
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)
To find the difference between the high end and the low end of the range, we need to subtract the low end from the high end.
High end rate - Low end rate:
2.329×10^−2 cm/h - 6.849×10^−4 cm/h
This can be written as: (2.329 - 0.006849) × 10^−2 cm/h
Simplifying:
2.329 × 10^−2 cm/h - 0.006849 × 10^−2 cm/h
= 2.322151 × 10^−2 cm/h
Therefore, the difference between the high end and the low end of the range is 2.322151 × 10^−2 cm/h.
High end rate - Low end rate:
2.329×10^−2 cm/h - 6.849×10^−4 cm/h
This can be written as: (2.329 - 0.006849) × 10^−2 cm/h
Simplifying:
2.329 × 10^−2 cm/h - 0.006849 × 10^−2 cm/h
= 2.322151 × 10^−2 cm/h
Therefore, the difference between the high end and the low end of the range is 2.322151 × 10^−2 cm/h.
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)
To find the difference between the high end and the low end of the range, we need to subtract the low end rate from the high end rate.
High end rate - Low end rate:
(2.329×10^−2 cm/h) - (6.849×10^−4 cm/h)
This can be written as: (2.329 - 0.006849) × 10^−2 cm/h
Simplifying:
2.329 × 10^−2 cm/h - 0.006849 × 10^−2 cm/h
= 2.322151 × 10^−2 cm/h
Therefore, the difference between the high end and low end of the range is 2.322151 × 10^−2 cm/h.
High end rate - Low end rate:
(2.329×10^−2 cm/h) - (6.849×10^−4 cm/h)
This can be written as: (2.329 - 0.006849) × 10^−2 cm/h
Simplifying:
2.329 × 10^−2 cm/h - 0.006849 × 10^−2 cm/h
= 2.322151 × 10^−2 cm/h
Therefore, the difference between the high end and low end of the range is 2.322151 × 10^−2 cm/h.