7.381 qnd -11
2.34 and 10
3.871 and 2
7.831 and -11
Correct answer is A
0.00014321940000 = k x 10n
where 1 ≤ k ≤ 10 and n is a whole number. Using four figure tables, the eqn. gives 7.38 x 10-11
k = 7.381, n = -11
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