Question
Subtract 4.66×10^−5 − 7.34×10^−7 (1 point)
Responses
−2.68×102
negative 2.68 times 10 squared
−4.5866×10−5
negative 4.5866 times 10 superscript negative 5 baseline
4.5866×10−5
4.5866 times 10 superscript negative 5 baseline
2.68×102
2.68 times 10 squared
Responses
−2.68×102
negative 2.68 times 10 squared
−4.5866×10−5
negative 4.5866 times 10 superscript negative 5 baseline
4.5866×10−5
4.5866 times 10 superscript negative 5 baseline
2.68×102
2.68 times 10 squared
Answers
Answer
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
$1.0183×1024
1.0183 dollars times 10 superscript 24 baseline
$2.9219×1013
2.9219 dollars times 10 superscript 13 baseline
$2.9219×1011
2.9219 dollars times 10 superscript 11 baseline
$3.0015×1013
3.0015 dollars times 10 superscript 13 baseline
Responses
$1.0183×1024
1.0183 dollars times 10 superscript 24 baseline
$2.9219×1013
2.9219 dollars times 10 superscript 13 baseline
$2.9219×1011
2.9219 dollars times 10 superscript 11 baseline
$3.0015×1013
3.0015 dollars times 10 superscript 13 baseline
Answer
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
3.2×10−9 m
3.2 times 10 superscript negative 9 baseline m
2.72×10−10 m
2.72 times 10 superscript negative 10 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
3.2×10−9 m
3.2 times 10 superscript negative 9 baseline m
2.72×10−10 m
2.72 times 10 superscript negative 10 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
Answer
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 red blood cell has a bigger diameter than a platelet by 5.17×10−6 m.
A red blood cell has a bigger diameter than a platelet 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 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 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.
Responses
A red blood cell has a bigger diameter than a platelet by 5.17×10−6 m.
A red blood cell has a bigger diameter than a platelet 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 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 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.
Answer
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
5×1010
5 times 10 superscript 10 baseline
5×107
5 times 10 superscript 7 baseline
5×108
5 times 10 superscript 8 baseline
5×109
5 times 10 superscript 9 baseline
Responses
5×1010
5 times 10 superscript 10 baseline
5×107
5 times 10 superscript 7 baseline
5×108
5 times 10 superscript 8 baseline
5×109
5 times 10 superscript 9 baseline
Answered by
Westen
3/5
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Those are the correct answers
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Those are the correct answers
Answered by
GPT 3.5
−4.5866×10−5
Answered by
GPT 3.5
To find the increase in the debt over the 50-year period, we need to subtract the debt in 1971 from the debt in 2021.
$2.9617×10^13 - $3.98×10^11 = $2.9219×10^13
Therefore, the debt increased by $2.9219×10^13.
$2.9617×10^13 - $3.98×10^11 = $2.9219×10^13
Therefore, the debt increased by $2.9219×10^13.
Answered by
GPT 3.5
To find the difference between the sizes of the atoms, we need to subtract the size of the hydrogen atom from the size of the oxygen atom.
0.000000000152 m - 1.2×10^−10 m = 0.000000000152 m - 0.00000000012 m = 0.000000000032 m
This can be written in scientific notation as 3.2×10^−11 m.
Therefore, the difference between the sizes of the hydrogen and oxygen atoms is 3.2×10^−11 m.
0.000000000152 m - 1.2×10^−10 m = 0.000000000152 m - 0.00000000012 m = 0.000000000032 m
This can be written in scientific notation as 3.2×10^−11 m.
Therefore, the difference between the sizes of the hydrogen and oxygen atoms is 3.2×10^−11 m.
Answered by
GPT 3.5
To determine which blood component has a bigger diameter, we can compare the given diameters of the platelet and red blood cell.
Diameter of a platelet: 2.33×10^−6 m
Diameter of a red blood cell: 0.0000075 m
Comparing these values, we see that the red blood cell has a bigger diameter than the platelet.
To find the approximate difference, we subtract the diameter of the platelet from the diameter of the red blood cell:
0.0000075 m - 2.33×10^−6 m = 0.0000075 m - 0.00000233 m = 0.00000517 m
This can be written in scientific notation as 5.17×10^−6 m.
Therefore, a red blood cell has a bigger diameter than a platelet by approximately 5.17×10^−6 m.
Diameter of a platelet: 2.33×10^−6 m
Diameter of a red blood cell: 0.0000075 m
Comparing these values, we see that the red blood cell has a bigger diameter than the platelet.
To find the approximate difference, we subtract the diameter of the platelet from the diameter of the red blood cell:
0.0000075 m - 2.33×10^−6 m = 0.0000075 m - 0.00000233 m = 0.00000517 m
This can be written in scientific notation as 5.17×10^−6 m.
Therefore, a red blood cell has a bigger diameter than a platelet by approximately 5.17×10^−6 m.
Answered by
GPT 3.5
To find the difference in population between China and India, we need to subtract the population of India from the population of China.
Population of China: 1.45×10^9
Population of India: 1,400,000,000
Subtracting these values, we get:
1.45×10^9 - 1,400,000,000 = 500,000,000 = 5×10^8
Therefore, there are 500,000,000 more people living in China than in India, which can be written as 5×10^8.
Population of China: 1.45×10^9
Population of India: 1,400,000,000
Subtracting these values, we get:
1.45×10^9 - 1,400,000,000 = 500,000,000 = 5×10^8
Therefore, there are 500,000,000 more people living in China than in India, which can be written as 5×10^8.
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