What is 3.56 x 10^-5 in standard form?

What is the solution to (4 x 10^4) x (3 10^4) write in scientific notation.

A player has 31 hits in 117 times at bat. What is the players average as a decimal? Round to the nearest thousandth.

Well here is your first part ...

3.56*10^-5

Its negative so go to the left:

=.00000356

Here is your second part ...

4*10^4*3*10^4

There both positive so go to the right

=40000 = 30000

Then you multiply ...

40000*30000=

= 1200000000

Here's your third part ...

You need to divide 31 by 117

31:117=

=0.2650%