The use of electricity in the US in 1902 was 6.03 x 10^9 kilowatt-hours. The use of electricity in the US in 1950 was 4.3 x 10^11 kilowatt-hours. How many times more was the electricity used in 1950 than 1902? Express your answer in Scientific Notation. (2 points) Responses ◂...▸◂⋅▸Multiply ◂⋅▸coefficients and add ◂⋅▸powers:◂...▸ 2.6×1021◂...▸◂⋅▸Multiply ◂⋅▸coefficients and add ◂⋅▸powers:◂...▸ 2.6×1021 ◂...▸Add ◂⋅▸coefficients and add ◂⋅▸powers:◂...▸ 10.33×1020◂...▸Add ◂⋅▸coefficients and add ◂⋅▸powers:◂...▸ 10.33×1020 ◂...▸◂⋅▸Subtract ◂⋅▸coefficients and ◂⋅▸divide ◂⋅▸powers:◂...▸ 1.73×102◂...▸◂⋅▸Subtract ◂⋅▸coefficients and ◂⋅▸divide ◂⋅▸powers:◂...▸ 1.73×102 ◂...▸◂⋅▸Divide ◂⋅▸coefficients and ◂⋅▸subtract ◂⋅▸powers:◂...▸ 7.13×101◂...▸◂⋅▸Divide ◂⋅▸coefficients and ◂⋅▸subtract ◂⋅▸powers:◂...▸ 7.13×101 ◂...▸◂⋅▸Divide ◂⋅▸coefficients and ◂⋅▸subtract ◂⋅▸powers:◂...▸ 1.4 x 102

Answer 1

The electricity used in 1950 was 71 times more than in 1902. This can be expressed in scientific notation as 7.1 x 10^1.