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Verified Answer :

linda43

15×10^11 ...is the answer

apologiabiology

scienfitic notation is
(number that is less than 10 but equal to or greater than 1) times 10^n

ok so
remeber
(ab)(ac)=(a)(b)(c)(d)
also
\((x^m)(x^n)=x^{m+n}\)
(510⁶)(310⁵)=
(5)(10⁶)(3)(10⁵)=
(5)(3)(10⁶)(10⁵)=
(15)(10¹¹)
remember that the first number has to be lesss than 10
15=1.5 times 10¹
(1.5)(10¹)(10¹¹)=
(1.5)(10¹²)


the answer is the 2nd option

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