Subtract 4.66×10^−5−7.34×10^−7(1 point)
Responses
−4.5866×10−5
negative 4.5866 times 10 superscript negative 5 baseline
2.68×102
2.68 times 10 squared
−2.68×102
negative 2.68 times 10 squared
4.5866×10−5
13 answers
4.5866×10−5
The U.S. national debt was $2.9617×10^13 in 2021 and $3.98×10^11 in 1971. Find how much the debt increased in the 50-year period. (1 point)
Responses
$2.9219×1013
2.9219 dollars times 10 superscript 13 baseline
$3.0015×1013
3.0015 dollars times 10 superscript 13 baseline
$1.0183×1024
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^11
Responses
$2.9219×1013
2.9219 dollars times 10 superscript 13 baseline
$3.0015×1013
3.0015 dollars times 10 superscript 13 baseline
$1.0183×1024
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^11
To find the increase in the U.S. national debt over the 50-year period, we need to subtract the 1971 debt from the 2021 debt.
$2.9617×10^13 - $3.98×10^11
= $2.9617×10^13 - $0.398×10^13
= $2.5637×10^13
Therefore, the debt increased by $2.5637×10^13.
$2.9617×10^13 - $3.98×10^11
= $2.9617×10^13 - $0.398×10^13
= $2.5637×10^13
Therefore, the debt increased by $2.5637×10^13.
thats wrong and not one of the answers put out
Apologies for the error. Let's calculate it correctly.
The increase in the debt over the 50-year period would be:
($2.9617×10^13) - ($3.98×10^11)
= $2.9617×10^13 - $0.398×10^13
= $2.56172×10^13
Therefore, the debt increased by $2.56172×10^13 over the 50-year period.
The increase in the debt over the 50-year period would be:
($2.9617×10^13) - ($3.98×10^11)
= $2.9617×10^13 - $0.398×10^13
= $2.56172×10^13
Therefore, the debt increased by $2.56172×10^13 over the 50-year period.
The U.S. national debt was $2.9617×10^13 in 2021 and $3.98×10^11 in 1971. Find how much the debt increased in the 50-year period. (1 point)
Responses
$2.9219×10^13
2.9219 dollars times 10 superscript 13 baseline
$3.0015×10^13
3.0015 dollars times 10 superscript 13 baseline
$1.0183×10^24
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^11
Responses
$2.9219×10^13
2.9219 dollars times 10 superscript 13 baseline
$3.0015×10^13
3.0015 dollars times 10 superscript 13 baseline
$1.0183×10^24
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^11
To find the increase in the U.S. national debt over the 50-year period, we need to subtract the 1971 debt from the 2021 debt.
2021 debt = $2.9617×10^13
1971 debt = $3.98×10^11
The increase in debt = 2021 debt - 1971 debt
= ($2.9617×10^13) - ($3.98×10^11)
= $2.9617×10^13 - $0.39×10^13
= $2.9613×10^13
Therefore, the debt increased by $2.9613×10^13 over the 50-year period.
The correct answer is "$2.9613×10^13".
2021 debt = $2.9617×10^13
1971 debt = $3.98×10^11
The increase in debt = 2021 debt - 1971 debt
= ($2.9617×10^13) - ($3.98×10^11)
= $2.9617×10^13 - $0.39×10^13
= $2.9613×10^13
Therefore, the debt increased by $2.9613×10^13 over the 50-year period.
The correct answer is "$2.9613×10^13".
The size of a hydrogen atom is about 1.2×10^−10 m across. The size of an oxygen atom is 0.000000000152 m across. What is the difference between the sizes of these atoms in scientific notation?(1 point)
Responses
2.72×10^−10 m
2.72 times 10 superscript negative 10 baseline m
3.2×10^−9 m
3.2 times 10 superscript negative 9 baseline m
3.2 ×10^−10 m
3.2 times 10 superscript negative 10 baseline m
3.2×10^−11 m
3.2 times 10 superscript negative 11 baseline m
Responses
2.72×10^−10 m
2.72 times 10 superscript negative 10 baseline m
3.2×10^−9 m
3.2 times 10 superscript negative 9 baseline m
3.2 ×10^−10 m
3.2 times 10 superscript negative 10 baseline m
3.2×10^−11 m
3.2 times 10 superscript negative 11 baseline m
To find the difference between the sizes of the hydrogen and oxygen atoms, we need to subtract the size of the hydrogen atom from the size of the oxygen atom.
Size of hydrogen atom = 1.2×10^−10 m
Size of oxygen atom = 0.000000000152 m = 1.52×10^−10 m
Difference = Size of oxygen atom - Size of hydrogen atom
= (1.52×10^−10 m) - (1.2×10^−10 m)
= 0.32×10^−10 m
In scientific notation, this can be written as 3.2×10^−11 m.
Therefore, the difference between the sizes of these atoms is 3.2×10^−11 m.
Size of hydrogen atom = 1.2×10^−10 m
Size of oxygen atom = 0.000000000152 m = 1.52×10^−10 m
Difference = Size of oxygen atom - Size of hydrogen atom
= (1.52×10^−10 m) - (1.2×10^−10 m)
= 0.32×10^−10 m
In scientific notation, this can be written as 3.2×10^−11 m.
Therefore, the difference between the sizes of these atoms is 3.2×10^−11 m.
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?(1 point)
Responses
A platelet has a bigger diameter than a red blood cell by 5.17×10^−6 m.
A platelet has a bigger diameter than a red blood cell by 5.17 times 10 superscript negative 6 baseline m.
A red blood cell has a bigger diameter than a platelet by 9.83×10^−6 m.
A red blood cell has a bigger diameter than a platelet by 9.83 times 10 superscript negative 6 baseline m.
A platelet has a bigger diameter than a red blood cell by 9.83×10^−6 m.
A platelet has a bigger diameter than a red blood cell by 9.83 times 10 superscript negative 6 baseline m.
A red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m.
Responses
A platelet has a bigger diameter than a red blood cell by 5.17×10^−6 m.
A platelet has a bigger diameter than a red blood cell by 5.17 times 10 superscript negative 6 baseline m.
A red blood cell has a bigger diameter than a platelet by 9.83×10^−6 m.
A red blood cell has a bigger diameter than a platelet by 9.83 times 10 superscript negative 6 baseline m.
A platelet has a bigger diameter than a red blood cell by 9.83×10^−6 m.
A platelet has a bigger diameter than a red blood cell by 9.83 times 10 superscript negative 6 baseline m.
A red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m.
To determine which blood component has a bigger diameter, we need to compare the diameters of a platelet and a red blood cell.
Diameter of a platelet = 2.33×10^−6 m
Diameter of a red blood cell = 0.0000075 m = 7.5×10^−6 m
Comparing the diameters, we find that the red blood cell has a bigger diameter than a platelet.
To find the difference in diameter, we need to subtract the diameter of the platelet from the diameter of the red blood cell.
Difference = Diameter of red blood cell - Diameter of platelet
= (7.5×10^−6 m) - (2.33×10^−6 m)
= 5.17×10^−6 m
Therefore, a red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m.
The correct answer is "A red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m."
Diameter of a platelet = 2.33×10^−6 m
Diameter of a red blood cell = 0.0000075 m = 7.5×10^−6 m
Comparing the diameters, we find that the red blood cell has a bigger diameter than a platelet.
To find the difference in diameter, we need to subtract the diameter of the platelet from the diameter of the red blood cell.
Difference = Diameter of red blood cell - Diameter of platelet
= (7.5×10^−6 m) - (2.33×10^−6 m)
= 5.17×10^−6 m
Therefore, a red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m.
The correct answer is "A red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m."
China and India are the most populous countries in the world. China’s population is approximately 1.45×10^9, while India’s population is approximately 1,400,000,000. How many more people live in China than in India?(1 point)
Responses
5×10^9
5 times 10 superscript 9 baseline
5×10^7
5 times 10 superscript 7 baseline
5×10^10
5 times 10 superscript 10 baseline
5×10^8
Responses
5×10^9
5 times 10 superscript 9 baseline
5×10^7
5 times 10 superscript 7 baseline
5×10^10
5 times 10 superscript 10 baseline
5×10^8
To find out how many more people live in China than in India, we need to subtract India's population from China's population.
China's population = 1.45×10^9
India's population = 1,400,000,000
Difference = China's population - India's population
= (1.45×10^9) - (1,400,000,000)
= 50,000,000
Therefore, there are 50,000,000 more people living in China than in India.
The answer is "50,000,000" or "5×10^7".
China's population = 1.45×10^9
India's population = 1,400,000,000
Difference = China's population - India's population
= (1.45×10^9) - (1,400,000,000)
= 50,000,000
Therefore, there are 50,000,000 more people living in China than in India.
The answer is "50,000,000" or "5×10^7".
1 answer