SOLUTION: 8.38 x 10^7 feet - 5.84 x 10^7 feet

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Question 37300: 8.38 x 10^7 feet - 5.84 x 10^7 feet
Answer by jcmtnez(53) About Me  (Show Source):
You can put this solution on YOUR website!
8.38 x 10^7 feet - 5.84 x 10^7 feet = 2.54 x 10^7 feet
Explanation:
If the exponent of ten are equals(in this case 7) we only have to substract the coefficients. Generally:
a%2A10%5Eb+-+c%2A10%5Eb+=+%28a-c%29%2A10%5Eb
With the sums is the same:
a%2A10%5Eb+%2B+c%2A10%5Eb+=+%28a%2Bc%29%2A10%5Eb
With multiplication and division change a little:
a%2A10%5Eb+%2A+c%2A10%5Ed+=+%28a%2Ac%29%2A10%5E%28b%2Bd%29 For multiplication
a%2A10%5Eb+%2F+c%2A10%5Ed+=+%28a%2Fc%29%2A10%5E%28b-d%29 For division