Question

Find the simplified form of the expression and write in scientific notation?

(8 x 10^7)(7 x 10^4)

Answer 1

this is the same as
8*10^7 * 7 * 10^4
(multiplying four numbers)
order can be changed when multiplying (right? example: 2*3= 3*2)
7*8 * 10^7 * 10^4
you can use parens if you like:
(7*8) * (10^7 * 10^4)

can you finish?

Answer 2

56 x 10 ^11

Answer 3

??

Answer 4

hello?

Answer 5

good
..

Answer 6

yes, but you want to put it into standard form: the leading number should be between 1 and 10
so make 56 small by a factor of 10 and make the 10^11 bigger by a factor of 10

that is:
5.6 x 10^12

Answer 7

okay, thanks