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vladimir2022 [97]
3 years ago
7

%209x" id="TexFormula1" title="5 {x}^{2} + 3 {x}^{2} + 6x = 3x - 6x + 9x" alt="5 {x}^{2} + 3 {x}^{2} + 6x = 3x - 6x + 9x" align="absmiddle" class="latex-formula">
find out x please fast please fast​
Mathematics
1 answer:
den301095 [7]3 years ago
5 0

Answer:

5 {x}^{2}  + 3 {x}^{2}  + 6x = 3x - 6x + 9x \\ 8 {x}^{2}  + 6x =  - 3x + 9x \\ 8 {x}^{2}  + 6x = 6x \\ 8 {x}^{2}  = 6x - 6x \\ 8 {x}^{2}  = 0 \\ x = 0 \\ thank \: you

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What are the two representations of the conversion factor used to convert between inches and feet? Select all that apply.
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B and C are the same thing and they would be the two representations of the conversion that shows 12 inches is equivalent to 1 foot, so B and C are your answers
6 0
3 years ago
In order to determine the average price of hotel rooms in Atlanta, a sample of 64 hotels was selected. It was determined that th
deff fn [24]

Answer:

The decision rule is  

Fail to reject the null hypothesis

The conclusion is  

There is no sufficient evidence to show that the average room price is significantly different from $108.50

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 64

    The average price is  \= x  = \$ 112

    The population standard deviation is  \sigma  = \$ 16

     The level of significance is  \alpha  = 0.05

    The population mean is  \mu = \$ 108.5

The null hypothesis is  H_o :  \mu = 108.50

The alternative hypothesis is  H_a  :  \mu \ne  108.50

Generally the test statistics is mathematically represented as

       z = \frac{\= x - \mu }{ \frac{ \sigma}{\sqrt{n} } }

=>    z = \frac{112 - 108.50 }{ \frac{ 16}{\sqrt{64} } }  

=>    z = 1.75

From the z table  the area under the normal curve to the left corresponding to  1.75  is  

       P( Z >  1.75) = 0.040059

Generally  p-value is mathematically represented as

        p-value = 2 * P( Z >  1.75)

=>     p-value = 2 * 0.040059

=>     p-value = 0.08012

From the values obtained we see that  p-value  > \alpha hence

The decision rule is  

Fail to reject the null hypothesis

The conclusion is  

There is no sufficient evidence to show that the average room price is significantly different from $108.50

 

3 0
3 years ago
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The value of y when x is 8 is b. 2/3
8 0
3 years ago
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The volume for any cube is length x width x height,
so in this case because all side of cube is the same, let it be y.
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so each side will be 3 inches
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3 years ago
Round 0.888889 to the nearest hundredth
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0.89
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