To subtract two numbers in scientific notation, we need to make sure that the exponents of the powers of 10 are the same.
7.7790892759 x 10^8 = 777,908,927.59
1.077104669 x 10^8 = 107,710,466.9
To subtract these, we align the decimal points and subtract the numbers:
777,908,927.59
-107,710,466.9
---------------
670,198,460.69
Now, we need to adjust the decimal point to get the final answer in scientific notation. The decimal point needs to be after the first non-zero digit, which in this case, is 6.
So the final answer in scientific notation is:
6.7019846069 x 10^8
7.7790892759 x 10^8 - 1.077104669 x 10^8
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