calculate 6.25 * 10^6 - 4.73 * 10^6. express your answer in scientific notation to 2 decimal places.
The calculation would be:
(6.25 * 10^6) - (4.73 * 10^6) = 1.52 * 10^6
So the answer in scientific notation to 2 decimal places is 1.52 * 10^6.
To subtract numbers in scientific notation, we need to ensure that the exponents are the same. Let's perform the calculation step-by-step:
1. Convert the numbers to scientific notation:
6.25 * 10^6 = 6.25e6
4.73 * 10^6 = 4.73e6
2. Subtract the digits:
6.25 - 4.73 = 1.52
3. Keep the same exponent as the original numbers:
The exponent remains 10^6.
4. Express the result in scientific notation:
1.52 * 10^6 = 1.52e6
Therefore, the result is 1.52e6.
To calculate the given expression, we need to subtract the second number from the first number. Let's break it down step-by-step:
1. Calculate the numerical difference: 6.25 * 10^6 - 4.73 * 10^6 = 1.52 * 10^6
2. Express the answer in scientific notation to 2 decimal places: 1.52 * 10^6 can be written as 1.52e+06.
Therefore, the answer is 1.52e+06 (or 1.52 * 10^6).
The average distance from earth to mars is 2.25 * 10^8 km, and the distance from the earth to Neptune is 4.3514 * 10^9 km. how much farther is Neptune from earth than mars? express your answer in scientific notation. do not round your answer.
To find the difference between the distance from Earth to Neptune and the distance from Earth to Mars, we'll subtract the distance to Mars from the distance to Neptune:
(4.3514 * 10^9 km) - (2.25 * 10^8 km)
To subtract the numbers in scientific notation, we need to ensure that the exponents are the same. Let's rewrite the expression with the same exponent:
(4.3514 * 10^9 km) - (0.225 * 10^9 km) = 4.3514 * 10^9 km - 0.225 * 10^9 km
Now we can subtract the numbers:
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.
To find the difference between the high end and low end of the range, we need to subtract the low end from the high end:
(2.329 * 10^-2 cm/hr) - (6.849 * 10^-4 cm/hr)
To subtract the numbers in scientific notation, we need to ensure that the exponents are the same. In this case, both numbers already have the same exponent (-2). So, we can subtract the numbers directly:
2.329 * 10^-2 cm/hr - 6.849 * 10^-4 cm/hr = 2.329 * 10^-2 cm/hr - 0.006849 * 10^-2 cm/hr
Now we can subtract the numbers:
2.329 * 10^-2 cm/hr - 0.006849 * 10^-2 cm/hr = 2.322151 * 10^-2 cm/hr
Therefore, the difference between the high end and low end of the range is 2.322151 * 10^-2 cm/hr.
that answer is incorrect
Apologies for the error. Let's try to find the correct answer.
The difference between the high end and low end of the range can be calculated by subtracting the low end value from the high end value:
(2.329 * 10^-2 cm/hr) - (6.849 * 10^-4 cm/hr)
To subtract these numbers, we need to ensure that the exponents are the same. We can convert the low end value to scientific notation with the same exponent:
(2.329 * 10^-2 cm/hr) - (0.006849 * 10^-2 cm/hr)
Now we can subtract the digits:
2.329 - 0.006849 = 2.322151
Since the exponents remain the same, we keep the exponent -2:
2.322151 * 10^-2 cm/hr
Therefore, the difference between the high end and low end of the range is 2.322151 * 10^-2 cm/hr.