To subtract the given numbers in scientific notation, we must first make sure the exponents are the same.
4.66 × 10^−5 = 0.0000466
7.34 × 10^−7 = 0.000000734
Subtracting these two numbers gives us 0.000045866.
Writing this in scientific notation, we get 4.5866 × 10^−5.
Therefore, the correct answer is option B: 4.5866×10^−5.
Subtract 4.66 × 10 ^−5 −7.34 × 10^−7 (1 point)
Responses
−4.5866×10^−5
4.5866×10^−5
2.68×10^2
−2.68×10^2
2 answers
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
$2.9219×10^11
2.9219 dollars times 10 superscript 11 baseline
$1.0183×10^24
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^13
2.9219 dollars times 10 superscript 13 baseline
$3.0015×10^13
Responses
$2.9219×10^11
2.9219 dollars times 10 superscript 11 baseline
$1.0183×10^24
1.0183 dollars times 10 superscript 24 baseline
$2.9219×10^13
2.9219 dollars times 10 superscript 13 baseline
$3.0015×10^13
1 answer