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masya89 [10]
3 years ago
11

Which expression is a possible leading term for the polynomial function graphed below?

Mathematics
2 answers:
ElenaW [278]3 years ago
3 0

Answer:

22x^9

Step-by-step explanation:

Note that this graph begins in Quadrant III and continues in Quadrant I.  This is also the behavior of the odd function y = x^3.  Thus, we can immediately eliminate the possibilities -18x^14 and 17x^12.  The correct answer choice is 22x^9, as this, as y = x^3, has a positive coefficient and the same shape as the given graphed function for "large" values of positive or negative x.

Juliette [100K]3 years ago
3 0

Answer: D

22x9

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

y=4x+10

y=3x+9

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4x+10=3x+9

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At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.03 for the estimation of a population pro
Gnom [1K]

Answer:

A sample of 1068 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.03 for the estimation of a population proportion?

We need a sample of n.

n is found when M = 0.03.

We have no prior estimate of \pi, so we use the worst case scenario, which is \pi = 0.5

Then

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.5*0.5}{n}}

0.03\sqrt{n} = 1.96*0.5

\sqrt{n} = \frac{1.96*0.5}{0.03}

(\sqrt{n})^{2} = (\frac{1.96*0.5}{0.03})^{2}

n = 1067.11

Rounding up

A sample of 1068 is needed.

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3 years ago
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Firlakuza [10]
Use an app called Socratic, take a photo of the questions you're stuck on, then it will help you in stages and show you the answer.

This app gives you *instant* homework answers, all subjects Get it: https://socratic.org/a/p04dj0084n

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3 years ago
LOIHal y LU LIC LOIVCI SC VILHC ISUSLCICS langic TCUICHT
vlada-n [284]

Answer:

  straight angle

Step-by-step explanation:

A<em> straight angle</em> is one whose measure is 180°. Its formative rays point in opposite directions from the vertex and make a straight line.

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