AALIYAHXOFFICIALGO AALIYAHXOFFICIALGO Mathematics Answered What is the sum of 5.3 X 10 and 3.8 x 104 in scientific notation? a) 9.1 x 10^9 b) 9.1 x 10^5 c) 5.68 x 10^5 d) 4.33 x 10^4