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pashok25 [27]
3 years ago
15

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to d

o these things by hand?
Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Probably because learning to do polynomials by hand boosts understanding of the topic and improves general algebraic solving ability,both of which are required in further topics like advanced calculus and algebra

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A door delivery florist wishes to estimate the proportion of people in his city that will purchase his flowers. Suppose the true
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Answer:

The probability that the sample proportion will differ from the population proportion by greater than 0.03 is 0.009.

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

 \mu_{\hat p}=p

The standard deviation of this sampling distribution of sample proportion is:

 \sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}

As the sample size is large, i.e. <em>n</em> = 492 > 30, the central limit theorem can be used to approximate the sampling distribution of sample proportion by the normal distribution.

The mean and standard deviation of the sampling distribution of sample proportion are:

\mu_{\hat p}=p=0.07\\\\\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.07(1-0.07)}{492}}=0.012

Compute the probability that the sample proportion will differ from the population proportion by greater than 0.03 as follows:

P(|\hat p-p|>0.03)=P(|\frac{\hat p-p}{\sigma_{\hat p}}|>\frac{0.03}{0.012})

                           =P(|Z|>2.61)\\\\=1-P(|Z|\leq 2.61)\\\\=1-P(-2.61\leq Z\leq 2.61)\\\\=1-[P(Z\leq 2.61)-P(Z\leq -2.61)]\\\\=1-0.9955+0.0045\\\\=0.0090

Thus, the probability that the sample proportion will differ from the population proportion by greater than 0.03 is 0.009.

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3 years ago
Identify the x and y intercepts on the chart pictured
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Y intercept = -2

There is no X intercept as it is an asymptote

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Step-by-step explanation:

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{45458 { \\ 2}^{2} }^{2}

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Answer:

the area of a square with a side length of 9x  

Step-by-step explanation:

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Is 5, √50, 5 a right triangle
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Answer:

Yeah,its right angled traingle.

Reason:Suppose Root over 50 as hypotenuse and other two sides as base and perpendicular respectively.

By using pythagoras theorem

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