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Debora [2.8K]
3 years ago
13

The graphs of two polynomial equations do not intersect. Kelly concludes that the system has no solution. Which statement best e

xplains why Kelly’s reasoning is correct or incorrect?.
Mathematics
2 answers:
yawa3891 [41]3 years ago
5 0

Answer:

The answer is A. "She is incorrect because systems may have only complex solutions which are not visible on a graph."

Step-by-step explanation:

antoniya [11.8K]3 years ago
3 0
Although the statements are not given, allow me to provide supplements to your understanding of polynomial equations. Because the graphs of two polynomial equations (let's name then f(x) and g(x)), then they do not share coordinate planes or points. If they do not share any points by intersection, then the system of equations does not have a solution. Therefore, Kelly's statement is correct.
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Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of
kirza4 [7]

Answer:

a

   P(X <  24 )=  21.186\%  

b

    x =  19.78 \  months

Step-by-step explanation:

From the question we are told that

 The mean is   \mu  =  26 \  months

 The standard deviation is  \sigma  =  4 \  months

 Generally 2 year is  equal to  24 months

Generally the percentage of total production will the company expect to replace is mathematically represented as

      P(X <  24 )=  P(\frac{X - \mu }{ \sigma} <  \frac{24 - 26}{4}  )

Generally  \frac{X - \mu}{\sigma } =Z (The  \ standardized \  value  \  of  \  X )

     P(X <  24 )=  P(Z <  -0.8  )

Generally from the z-table  

       P(Z <  -0.8) =  0.21186

So

       P(X <  24 )=  0.21186

Converting to percentage

      P(X <  24 )=  0.21186  * 100

=>    P(X <  24 )=  21.186\%  

Generally the duration that should be the guarantee period if  Accrotime does not want to make refunds on more than 6% is mathematically evaluated as

    P(X <  x) =  P(\frac{X - \mu }{\sigma}  < \frac{x - 26}{4} )= 0.06

=> P(X <  x) =  P(Z < \frac{x - 26}{4} )= 0.06

From the normal distribution table the z-score for  0.06 at the lower tail  is

       z = -1.555

So

    \frac{x - 26}{4} = -1.555

=> x =  19.78 \  months  

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A number,n, is at least -1.5
Whitepunk [10]
Change that into a mathematical inequality and you get 
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Hope this helps :)
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3 years ago
8 divided by 2 times 10 plus 14
BARSIC [14]

Answer:

54

Step-by-step explanation:

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Answer: 180 degrees

Step-by-step explanation: I think

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