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
negative 2.68 times 10 squared
2.68×102
2.68 times 10 squared
4.5866×10−5
btw here are the answers
1. 4.5866 * 10^-5
2. $2.9219 * 10^13
3. 3.2 * 10^-11m
4. A red blood cell has a bigger diameter than platelet by 5.17 * 10^-6
5. 5 * 10^7
tysm G.R.E.G i got 100
4.5866 times 10 to the power of negative 5
To find the increase in the national debt over the 50-year period, we subtract the debt in 1971 from the debt in 2021.
$2.9617×10^13 - $3.98×10^11
= $2.9219×10^13
To find the difference in sizes between the hydrogen atom and the oxygen atom, we subtract the size of the hydrogen atom from the size of the oxygen atom.
0.000000000152 m - 1.2×10^-10 m
= 3.2×10^-11 m
To find out how many more people live in China than in India, we subtract the population of India from the population of China.
1.45×10^9 - 1,400,000,000
= 5×10^7
Therefore, there are 5×10^7 (50,000,000) more people living in China than in India.
The U.S. national debt was $2.9617×1013 in 2021 and $3.98×1011 in 1971. Find how much the debt increased in the 50-year period. (1 point)
Responses
$2.9219×1011
2.9219 dollars times 10 superscript 11 baseline
$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
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
3.2×10−11 m
3.2 times 10 superscript negative 11 baseline m
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
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.
To find the difference in diameters between the platelet and the red blood cell, we subtract the diameter of the platelet from the diameter of the red blood cell.
0.0000075 m - 2.33×10^-6 m
= 5.17×10^-6 m
Therefore, a platelet has a bigger diameter than a red blood cell by 5.17×10^-6 m.