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Dmitry_Shevchenko [17]
3 years ago
7

If there was 17 boys and21 girls what would be the ratio

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
8 0
17 boys to 21 girls 
17 boys/21 girls
17 boys:21 girls 
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What are the roots to<br> the equation<br> 2x² + 6x-1=0?
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Answer:

The roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}    

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

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And products of roots = \frac{c}{a}

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And m × n =  \frac{ - 1}{2}

Or, (m - n)² = (m + n)² - 4mn

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I.e m - n = \sqrt{11}

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Similarly n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      

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3 years ago
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Answer: the first one is 735.75

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