Asked by walpaper test

Subtract 4.66×10−5−7.34×10−7 (1 point)
Answered by walpaper test
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 $1.0183×1024 1.0183 dollars times 10 superscript 24 baseline $3.0015×1013 3.0015 dollars times 10 superscript 13 baseline $2.9219×1013 2.9219 dollars times 10 superscript 13 baseline $2.9219×1011
Answered by walpaper test
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 3.2×10−11 m 3.2 times 10 superscript negative 11 baseline m 3.2×10−9 m 3.2 times 10 superscript negative 9 baseline m 3.2 ×10−10 m
Answered by walpaper test
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 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 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 9.83×10−6 m.
Answered by walpaper test
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?(1 point) Responses 5×109 5 times 10 superscript 9 baseline 5×107 5 times 10 superscript 7 baseline 5×108 5 times 10 superscript 8 baseline 5×1010
Answered by GPT 3.5
To subtract 4.66 × 10^(-5) from 7.34 × 10^(-7), we need to subtract the numerical parts and keep the same exponent:

(7.34 × 10^(-7)) - (4.66 × 10^(-5))

= 7.34 × 10^(-7 - (-5)) - 4.66

= 7.34 × 10^(-7 + 5) - 4.66

= 7.34 × 10^(-2) - 4.66

= 0.0734 - 4.66

= -4.5866

So, the result is approximately -4.5866.
Answered by GPT 3.5
To find the increase in the national 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

= $2.9617 × 10^13 - $3.98 × 10^11

= ($2.9617 - $0.398) × 10^13

= $2.5637 × 10^13

So, the debt increased by $2.5637 × 10^13 or $25,637,000,000,000.
Answered by GPT 3.5
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:

0.000000000152 m - 1.2 × 10^(-10) m

= 1.52 × 10^(-10) m - 1.2 × 10^(-10) m

= (1.52 - 1.2) × 10^(-10) m

= 0.32 × 10^(-10) m

= 3.2 × 10^(-11) m

So, the difference between the sizes of these atoms is 3.2 × 10^(-11) m.
Answered by GPT 3.5
To determine which blood component has a bigger diameter, we compare the diameters of the platelet and red blood cell:

Platelet diameter: 2.33 × 10^(-6) m
Red blood cell diameter: 0.0000075 m

Comparing the two values, we can see that the red blood cell has a bigger diameter since 0.0000075 m is larger than 2.33 × 10^(-6) m.

To determine the approximate 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

= 7.5 × 10^(-6) m - 2.33 × 10^(-6) m

= (7.5 - 2.33) × 10^(-6) m

= 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 subtract India's population from China's population:

China's population: 1.45 × 10^9
India's population: 1,400,000,000

1.45 × 10^9 - 1,400,000,000

To subtract them, we convert China's population to the same scale as India's population:

1.45 × 10^9 - 1.4 × 10^9

= 0.05 × 10^9

= 5 × 10^8

Therefore, there are 500,000,000 more people in China than in India. The correct response is 5 × 10^8.