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mario62 [17]
3 years ago
5

Which of the following equations is the result of completing the square on x^2 - 6x - 9 = 0?

Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
7 0
The answer will be a
okey hope that helped
lina2011 [118]3 years ago
6 0
X² - 6x - 9 = 0
x² - 3x - 3x - 9 = 0
x (x-3) -3(x + 3) = 0
(x - 3)² = 0

In short, Your Answer would be Option A

Hope this helps!
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The two plans don't fall directly on a same prive, but after 3 hours of Data usage plan B costs more than plan A

After three hours plan A= $18.60

While plan B after three hours =$19.09

That means 3 hours has to pass before plan B costs more, That is 180 minutes

The rule per hour is $1.2 per hour for plan A and $4.8 per hour for plan B 
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3 years ago
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<u><em>Answer:</em></u>

<u><em>y = 50</em></u>

<u><em>Step-by-step explanation:</em></u>

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2 years ago
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A random sample of 38 wheel chair users were asked whether they preferred cushion type A or B, and 28 of them preferred type A w
-BARSIC- [3]

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The statement that cushion A is twice as popular as cushion B cannot be verified

Step-by-step explanation:

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Sample size n=38

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P(a)=\frac{28}{38}

P(a)=0.73

Generally the equation for A to be twice as popular as B is mathematically given by

P(b)+2P(b)=3P

Therefore Hypothesis

Null H_0: p \leq \frac{2P}{3P} \\Altenative H_A:p>\frac{2P}{3P}

Generally the equation normal approx of p value is mathematically given by

z=\frac{x-np_0-0.5}{\sqrt{np_0(1-p_0)} }

z=\frac{28-(38*2/3)_0-0.5}{\sqrt{38*2/3*1/3} }

z=0.75

Therefore from distribution table

Pvalue=1-\theta (0.75)

Pvalue=0.227

Therefore there is no sufficient evidence to disagree with  the Null hypothesis H_0

Therefore the statement that cushion A is twice as popular as cushion B cannot be verified

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3 years ago
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Answer:

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Step-by-step explanation:

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