Question

Have to show work and need to write the answer in Scientific Notation
8.4x10^12/-7x10^9

Answer 1

well you can do it this way

\[\frac{(8.4 \times 10^{10}) \times 10^2}{-7 \times 10^9}\]

which is like saying

\[\frac{84 \times 10^9}{-7 \times 10^9} \times 10^2\]

which leaves

\[- \frac{84}{7} \times 10^2\]

which is

\[-12\times 10^2... or... -1.2 \times 10^3\]

Answer 2

how did you get 10^2

Answer 3

I moved the decimal point 1 place to the right in the number 8.4 to get 84 ... which is the same as multiplying by 10...

Answer 4

yeah but its 10 to the 12th power