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Elodia [21]
3 years ago
5

Fifteen Players , 2 coaches , anf 21 parents attened this year's sports banquey. The cost of each meal was $12.00 plus 5% (0.05)

sales tax. What was the total cost of food for the banquet???
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
6 0
$34.80 because, if you add 15+2+21=58x12.00=696x0.05=34.80
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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

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

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And m × n =  \frac{ - 1}{2}

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 (\frac{ - 1}{2})

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

Again m + n = - 3    And m - n = \sqrt{11}

Solving this two equation

(m + n) + ( m - n) = - 3 + \sqrt{11}

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Or, m = \frac{-3}{2} + \frac{\sqrt{11} }{2}

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

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

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<h3>How to determine the values of the expressions?</h3>

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brainly.com/question/13282457

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