Where is 'm?' Why is m used in your question.
Answer:
x = 4 ±
Step-by-step explanation:
Given
x² - 8x - 14 = 0 ( add 14 to both sides )
x² - 8x = 14
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 14 + 16, that is
(x - 4)² = 30 ( take the square root of both sides )
x - 4 = ± ( add 4 to both sides )
x = 4 ± , thus the exact solutions are
x = 4 -
x = 4 +
Answer:
78 rounds to 80, so find 10% of 80 and double it. 10% of 80 is 8. So, 20% of 80 is 16. Then, 22% of 78 is a little more than 16.
78 rounds to 80, and 22% is a little less than 25%. 25% (or one-fourth) of 80 is 20. So, 22% of 78 is a little less than 20.
Step-by-step explanation:
The number of ways you can choose "r" things from a larger set of "n" things:
n! / r! * (n -r)! =
49! / 6! * (43!) =
49 * 48 * 47 * 46 * 45 * 44 * 43! / 6! * 43! =
49 * 48 * 47 * 46 * 45 * 44 / 6 * 5 * 4 * 3 * 2 =
49 * 47 * 46 * 45 * 44 / 5 * 3 =
49 * 47 * 46 * 3 * 44 =
<span><span><span>13,983,816
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So it is 1 in 13,983,816<span> and
p = </span>
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0.00000007151123842019
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So, it is true.
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