Scientific Notation

Please express your answer in scientific notation
(6.0 x 10^5) x (3.0 x 10^4)=
My answer - 18 x 10^9

18 x 10 ^20
18 x 10 ^9
1.8 x 10 ^20
1.8 x 10 ^10


Please express your answer in scientific notation
(2.56 x 10^6) x (3.56 x 10^2) =
My answer - 9.1136 x 10^8

9.1136 x 10
12
91.136 x 10
8
9.1136 x 10
8
91.136 x 10
12

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asked by YOLO
  1. in scientific notation you start with a number between 1 and 10 followed by a decimal, multiplied by a power of 10
    So 18 x 10^9 is mathematically correct it is not in scientific notation.
    the correct answer is 1.8 x 10^10


    your 2nd question is correct

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    posted by Reiny

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