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.
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.
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.
1.52×106
Calculate 6.25×106−4.73×106. Express your answer in scientific notation to 2 decimal places. (1 point)
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)
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)
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 calculate (6.25×10^6) - (4.73×10^6), we need to subtract the numbers and keep the exponent the same.
Step 1: Subtract the numbers:
6.25×10^6 - 4.73×10^6 = 1.52×10^6
Step 2: Express the answer in scientific notation to 2 decimal places:
1.52×10^6 can be written as 1.52 million (rounded to two decimal places).
So, the answer is 1.52 million.
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.