The number of permutations of 8 people taken 6 at a time is given by:
Two numbers are in the ratio 7:5 and their difference is 22.Find the numbers
1 answer:
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This is an example of the quotient of powers property and tells us that when you divide powers with the same base you just have to subtract the exponents. When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1.
