Question

Find the simplified form of the expression. Give your answer in scientific notation.

(5x10^6)(3x10^5)
- 1.5x20^11
-1.5x10^12
-15x10^11
- 1.5x10^10

Answer 1

15×10^11 ...is the answer

Answer 2

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)`
(5*10⁶)(3*10⁵)=
(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