garciatristan973 garciatristan973 08-09-2022 Mathematics Answered Find the sum of (4.9 × 10^−9) and (7.4 × 10^−10). Write the final answer in scientific notation. 5.64 × 10^−9 5.64 × 10^−10 1.23 × 10^−18 12.3 × 10^−19