Do the following operations without a calculator. Be sure to

Last updated: 7/16/2022

Do the following operations without a calculator. Be sure to express answers in scientific notation. You may round your answers to one decima a.(3x10³) × (2×10⁹) b. (5x106) + (9x105) c. (4×10⁹) + (2x10³) a.(3x10³) x (2x 10) = 6x10 (Use the multiplication symbol in the math palette as needed.) b. (5x106) + (9x10³) = (Use the multiplication symbol in the math palette as needed.) C.(4x109) + (2x103) =0