Answer
$1.42933 \times 10^{19}$
Work Step by Step
$\frac{1.295643 \times {10^9}}{(3.610\times 10^{-17})(2.511\times 10^{6})}$
First we need to combine out denominator. We multiple the number together and add the exponents.
$\frac{1.295643 \times {10^9}}{(9.06471\times 10^{-17}\times 10^{6})}$
$\frac{1.295643 \times {10^9}}{9.06471\times 10^{-11}}$
Next we divide. Remember, when dividing exponent numbers like this we subtract. So it will be 9-(-11).
$0.142933 \times \frac{10^9}{10^{-11}} $
$0.142933 \times 10^{20}$
Now for proper scientific notation we need to move the decimal place over 1 point which is -1 to the exponent. Giving us:
$1.42933 \times 10^{19}$
