gwzhnyybn2 gwzhnyybn2 13-10-2022 Mathematics Answered (X) 1.10.PS-7 Simplify the expression. Write the answer in scientific notation. (7×10¯²) (9×10¯²) (7×10¯²) (9×10¯²) = ¯ (Simplify your answer. Use scientific notation. Use the multiplication symbol in the r Enter you