3 times 10 to the 8th power divided by 7 times 10 to the negative 7th power equates to: 4.28571428571
It is: (8*10^-3) divided by (5*10^-5) = 160
20,000
6.3333333 x 10^20
10 to the negative 12 power
A negative times a positive is always negative. Similarly, a positive divided by a negative is negative.
1
The decimal form of 7.73 times 10 to the negative third power is 0.00773
7.9 times 10 to the negative 6 power in standard notation = 0.0000079
3.2 x 104/2 x 10-8 = (3.2/2) x (104+8) = 1.6 x 1012
take the negative out of that power and place it as 10/-1
You reverse the sign of the power and multiply by adding exponents. Example 10 to the 7 divided by 10 to the negative 6 = 10 to the 13