Question

Find the simplified form of the expression. Give your answer in Scientific Notation.

(8 * 10^4)(9 * 10^-8)

A. 7.2 * 10^-5
B. 7.2 * 10^-3
C. 72 * 10^-4
D. 7.2 * 10^-31

Answer 1

@Michele_Laino

Answer 2

8 * 9 = 72

Answer 3

ok!

Answer 4

10^4 * 10^-8 = 10^-4

Answer 5

ok!

Answer 6

So with that ^ it comes out to be: 72 * 10^-4

Answer 7

yes it is correct, nevertheless it is not in scientific notation

Answer 8

please keep in mind that 72= 7.2 * 10^1

Answer 9

Yes, would it be B

Answer 10

that's right!

Answer 11

Thanks @Michele_Laino

Answer 12

Thanks! :)