Question

Find the simplified expression. give your answer in scientific notation (8 x 10^4)(9 x 10^-8)

Answer 1

So multiply and we get 72x10^-4; however, this isn’t scientific notation. So 72 = 7.2 x 10^1 and (7.2 x 10^1) x 10^-4 = 7.2 x 10^-3