To subtract these numbers, we first need to make sure they have the same exponent.
4.66 × 10^-5 can be written as 0.0000466 × 10^-5, and 7.34 × 10^-7 can be written as 0.000000734 × 10^-7.
Now we can subtract the two numbers:
0.0000466 × 10^-5 - 0.000000734 × 10^-7 = 0.000045866 × 10^-5 - 0.000000734 × 10^-7
Since the exponents are the same, we can subtract the decimal numbers:
0.000045866 - 0.000000734 = 0.000045132
Therefore, 4.66 × 10^-5 - 7.34 × 10^-7 is equal to 0.000045132 × 10^-5 or simply 4.5132 × 10^-5.
Subtract 4.66 × 10^-5 − 7.34 × 10^−7
19 answers
is this correct
Apologies for the error in the previous response. Let's correct it:
To subtract these numbers, we need to make sure they have the same exponent.
4.66 × 10^-5 can be written as 0.0000466 × 10^-5, and 7.34 × 10^-7 can be written as 0.000000734 × 10^-5.
Now we can subtract the two numbers:
0.0000466 × 10^-5 - 0.000000734 × 10^-5 = 0.000045866 × 10^-5
Since the exponents are the same, we can subtract the decimal numbers:
0.000045866 × 10^-5
Therefore, the correct answer is 4.5866 × 10^-5.
To subtract these numbers, we need to make sure they have the same exponent.
4.66 × 10^-5 can be written as 0.0000466 × 10^-5, and 7.34 × 10^-7 can be written as 0.000000734 × 10^-5.
Now we can subtract the two numbers:
0.0000466 × 10^-5 - 0.000000734 × 10^-5 = 0.000045866 × 10^-5
Since the exponents are the same, we can subtract the decimal numbers:
0.000045866 × 10^-5
Therefore, the correct answer is 4.5866 × 10^-5.
Platelets and red blood cells are components of the blood. A typical platelet and red blood cell have diameters of approximately 2.33×10−6 m and 0.0000075 m, respectively. Which blood component has a bigger diameter, and approximately by how much?
To compare the diameters of the platelet and red blood cell:
The diameter of the platelet is approximately 2.33 × 10^-6 m.
The diameter of the red blood cell is approximately 0.0000075 m.
To find the difference in diameter, we subtract the diameter of the platelet from the diameter of the red blood cell:
0.0000075 m - 2.33 × 10^-6 m
To simplify the calculation, we can convert both values to scientific notation.
0.0000075 m becomes 7.5 × 10^-6 m.
Now, we can subtract the two values:
7.5 × 10^-6 m - 2.33 × 10^-6 m = 5.17 × 10^-6 m
Therefore, the red blood cell has a bigger diameter than the platelet by approximately 5.17 × 10^-6 meters.
The diameter of the platelet is approximately 2.33 × 10^-6 m.
The diameter of the red blood cell is approximately 0.0000075 m.
To find the difference in diameter, we subtract the diameter of the platelet from the diameter of the red blood cell:
0.0000075 m - 2.33 × 10^-6 m
To simplify the calculation, we can convert both values to scientific notation.
0.0000075 m becomes 7.5 × 10^-6 m.
Now, we can subtract the two values:
7.5 × 10^-6 m - 2.33 × 10^-6 m = 5.17 × 10^-6 m
Therefore, the red blood cell has a bigger diameter than the platelet by approximately 5.17 × 10^-6 meters.
China and India are the most populous countries in the world. China’s population is approximately 1.45×109 , while India’s population is approximately 1,400,000,000. How many more people live in China than in India?
To find out how many more people live in China than in India, we subtract the population of India from the population of China.
China's population is approximately 1.45 × 10^9
India's population is approximately 1,400,000,000
Converting the population of India to scientific notation, it becomes 1.4 × 10^9.
Now we can subtract the two populations:
1.45 × 10^9 - 1.4 × 10^9 = 0.05 × 10^9
Simplifying further:
0.05 × 10^9 = 5 × 10^7
Therefore, there are 50,000,000 (5 × 10^7) more people in China than in India.
China's population is approximately 1.45 × 10^9
India's population is approximately 1,400,000,000
Converting the population of India to scientific notation, it becomes 1.4 × 10^9.
Now we can subtract the two populations:
1.45 × 10^9 - 1.4 × 10^9 = 0.05 × 10^9
Simplifying further:
0.05 × 10^9 = 5 × 10^7
Therefore, there are 50,000,000 (5 × 10^7) more people in China than in India.
Calculate 6.25×106−4.73×106 . Express your answer in scientific notation to 2 decimal places.
To subtract these numbers, we simply subtract the coefficients while keeping the same exponent.
6.25 × 10^6 - 4.73 × 10^6
= 1.52 × 10^6
Therefore, 6.25 × 10^6 - 4.73 × 10^6 is equal to 1.52 × 10^6.
6.25 × 10^6 - 4.73 × 10^6
= 1.52 × 10^6
Therefore, 6.25 × 10^6 - 4.73 × 10^6 is equal to 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.
To find out how much farther Neptune is from Earth than Mars, we subtract the distance to Mars from the distance to Neptune.
The distance to Mars is 2.25 × 10^8 km.
The distance to Neptune is 4.3514 × 10^9 km.
Now we can subtract the two distances:
4.3514 × 10^9 km - 2.25 × 10^8 km
To perform this subtraction, we can convert both distances to scientific notation with the same exponent.
4.3514 × 10^9 km can be rewritten as 435.14 × 10^7 km.
Now we can subtract:
435.14 × 10^7 km - 2.25 × 10^8 km
= (4.3514 × 10^2) × 10^7 km - (2.25 × 10^2) × 10^7 km
= (4.3514 - 2.25) × 10^7 km
= 2.1014 × 10^7 km
Therefore, Neptune is 2.1014 × 10^7 km farther from Earth than Mars.
The distance to Mars is 2.25 × 10^8 km.
The distance to Neptune is 4.3514 × 10^9 km.
Now we can subtract the two distances:
4.3514 × 10^9 km - 2.25 × 10^8 km
To perform this subtraction, we can convert both distances to scientific notation with the same exponent.
4.3514 × 10^9 km can be rewritten as 435.14 × 10^7 km.
Now we can subtract:
435.14 × 10^7 km - 2.25 × 10^8 km
= (4.3514 × 10^2) × 10^7 km - (2.25 × 10^2) × 10^7 km
= (4.3514 - 2.25) × 10^7 km
= 2.1014 × 10^7 km
Therefore, Neptune is 2.1014 × 10^7 km farther from Earth than Mars.
Wrong
Apologies for the mistake in the previous response. Let's correct it:
To find out how much farther Neptune is from Earth than Mars, we subtract the distance to Mars from the distance to Neptune.
The distance to Mars is 2.25 × 10^8 km.
The distance to Neptune is 4.3514 × 10^9 km.
Now we can subtract the two distances:
4.3514 × 10^9 km - 2.25 × 10^8 km
To perform this subtraction, we need to have the same exponent for both distances.
2.25 × 10^8 km can be rewritten as 0.225 × 10^9 km.
Now we can subtract:
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 out how much farther Neptune is from Earth than Mars, we subtract the distance to Mars from the distance to Neptune.
The distance to Mars is 2.25 × 10^8 km.
The distance to Neptune is 4.3514 × 10^9 km.
Now we can subtract the two distances:
4.3514 × 10^9 km - 2.25 × 10^8 km
To perform this subtraction, we need to have the same exponent for both distances.
2.25 × 10^8 km can be rewritten as 0.225 × 10^9 km.
Now we can subtract:
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 for hair growth rate, we subtract the low end rate from the high end rate.
The low end rate is 6.849 × 10^-4 cm/hr.
The high end rate is 2.329 × 10^-2 cm/hr.
Now we can subtract the two rates:
2.329 × 10^-2 cm/hr - 6.849 × 10^-4 cm/hr
To perform this calculation, we can write both rates with the same exponent.
2.329 × 10^-2 cm/hr can be rewritten as 0.2329 × 10^-1 cm/hr.
Now we can subtract:
0.2329 × 10^-1 cm/hr - 6.849 × 10^-4 cm/hr
= 0.2329 × 10^-1 cm/hr - 0.006849 × 10^-2 cm/hr
= (0.2329 - 0.006849) × 10^-1 cm/hr
= 0.226051 × 10^-1 cm/hr
We can simplify the coefficient to express the answer in scientific notation:
0.226051 × 10^-1 cm/hr = 2.26051 × 10^-2 cm/hr
Therefore, the difference between the high end and low end of the range for hair growth rate is 2.26051 × 10^-2 cm/hr.
The low end rate is 6.849 × 10^-4 cm/hr.
The high end rate is 2.329 × 10^-2 cm/hr.
Now we can subtract the two rates:
2.329 × 10^-2 cm/hr - 6.849 × 10^-4 cm/hr
To perform this calculation, we can write both rates with the same exponent.
2.329 × 10^-2 cm/hr can be rewritten as 0.2329 × 10^-1 cm/hr.
Now we can subtract:
0.2329 × 10^-1 cm/hr - 6.849 × 10^-4 cm/hr
= 0.2329 × 10^-1 cm/hr - 0.006849 × 10^-2 cm/hr
= (0.2329 - 0.006849) × 10^-1 cm/hr
= 0.226051 × 10^-1 cm/hr
We can simplify the coefficient to express the answer in scientific notation:
0.226051 × 10^-1 cm/hr = 2.26051 × 10^-2 cm/hr
Therefore, the difference between the high end and low end of the range for hair growth rate is 2.26051 × 10^-2 cm/hr.
Find 0.078−(5.2×10−3) . Express your answer in scientific notation. Do not round your answer.
To subtract these numbers, we simply subtract the coefficients while keeping the exponent the same.
0.078 - (5.2 × 10^-3)
= 0.078 - 0.0052
= 0.0728
Now we can express the answer in scientific notation by moving the decimal point to the appropriate location. In this case, the decimal point will move to the right, so the exponent will be negative.
0.0728 = 7.28 × 10^-2
Therefore, 0.078 - (5.2 × 10^-3) is equal to 7.28 × 10^-2.
0.078 - (5.2 × 10^-3)
= 0.078 - 0.0052
= 0.0728
Now we can express the answer in scientific notation by moving the decimal point to the appropriate location. In this case, the decimal point will move to the right, so the exponent will be negative.
0.0728 = 7.28 × 10^-2
Therefore, 0.078 - (5.2 × 10^-3) is equal to 7.28 × 10^-2.
Earth’s radius is approximately 3,959 miles, while Jupiter’s radius is approximately 4.3441×104 miles. How much bigger is Jupiter’s radius compared to Earth’s? Express your answer in scientific notation. Do not round your answer.
To find out how much bigger Jupiter's radius is compared to Earth's, we subtract Earth's radius from Jupiter's radius.
Earth's radius is approximately 3,959 miles.
Jupiter's radius is approximately 4.3441 × 10^4 miles.
Now we can subtract the two radii:
4.3441 × 10^4 miles - 3,959 miles
To perform this subtraction, we can convert both values to scientific notation with the same exponent.
3,959 miles can be rewritten as 3.959 × 10^3 miles.
Now we can subtract:
4.3441 × 10^4 miles - 3.959 × 10^3 miles
= 4.3441 × 10^4 miles - 3.959 × 10^3 miles
= (4.3441 - 0.3959) × 10^4 miles
= 3.9482 × 10^4 miles
Therefore, Jupiter's radius is 3.9482 × 10^4 miles bigger than Earth's radius.
Earth's radius is approximately 3,959 miles.
Jupiter's radius is approximately 4.3441 × 10^4 miles.
Now we can subtract the two radii:
4.3441 × 10^4 miles - 3,959 miles
To perform this subtraction, we can convert both values to scientific notation with the same exponent.
3,959 miles can be rewritten as 3.959 × 10^3 miles.
Now we can subtract:
4.3441 × 10^4 miles - 3.959 × 10^3 miles
= 4.3441 × 10^4 miles - 3.959 × 10^3 miles
= (4.3441 - 0.3959) × 10^4 miles
= 3.9482 × 10^4 miles
Therefore, Jupiter's radius is 3.9482 × 10^4 miles bigger than Earth's radius.