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yuradex [85]
3 years ago
5

Please slove number 16

Mathematics
2 answers:
kap26 [50]3 years ago
6 0
The answer to your question is A, since 3/12 + 5/12 is 8/12, leaving 4/12 left. (Sorry if I'm confusing)
saveliy_v [14]3 years ago
5 0
A. because 5+3=8 
12-8=4
So 4/12 
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The answer is: x = 7 - √53      or      x = 7 + √53

The general quadratic equation is: ax² + bx + c  = 0.
But, by completing the square we turn it into: a(x + d)² + e = 0, where:<span>
d = b/2a
e = c - b²/4a
Our quadratic equation is x² - 14x -4 = 0, which is after rearrangement:
So, a = 1, b = -14, c = -4
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d = b/2a = -14/2*1 = -14/2 = -7
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