John flips 10 coins and lays them out in a straight line.
1 answer:
For every coin, two options are possible. The formula for calculting all possibilities is where p is possibilities per time and t is times.
Therefore, there are which is 1024 combinations.
The formula for calculating probability is where w is the ways to achieve the desired outcome, and t is the total outcomes possible.
Therefore, there is a chance of flipping ten tails.
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x² - x - 6 = x² - 3 x + 2 x - 6 = x ( x - 3 ) + 2 ( x - 3 ) = ( x - 3 ) ( x + 2 )
x ² - 4 = ( x - 2 ) ( x + 2 )
We have to factorize the numerator and the denominator:
x² - x - 6 = x² - 3 x + 2 x - 6 = x ( x - 3 ) + 2 ( x - 3 ) = ( x - 3 ) ( x + 2 )
x ² - 4 = ( x - 2 ) ( x + 2 )