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Sergio039 [100]
3 years ago
11

Which of the values shown are potential roots of f(x) = 3x3 – 13x2 – 3x + 45? Select all that apply

SAT
2 answers:
balu736 [363]3 years ago
7 0

Answer:

+- 1/3

+- 5

+-5/3

+- 9

+-1

+-15

+- 3

+-45

Explanation:

all of the answer

Amanda [17]3 years ago
6 0

Answer:

[tex]5 \div \times \frac{1}{19849552)3.8 \sqrt{15 \times

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Explanation:

the correct answer is recognizing and identifying the problem

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2 years ago
Use the sample data and confidence level given below to complete parts a through d.
4vir4ik [10]

Using the information given and the z-distribution, it is found that:

a) The point estimate of the population proportion is 0.5544.

b) The margin of error is: 0.0320.

c) The interval is: (0.5224, 0.5864).

d) The interpretation of the interval is: we are 95% sure that the true population proportion is between 0.5224 and 0.5864.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions has the bounds given by the rule presented as follows:

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

In which the variables used to calculated these bounds are listed as follows:

  • \pi is the point estimate of the population proportion.
  • z is the critical value.
  • n is the sample size.

The confidence level is of 95%, hence the critical value z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

From the sample, the sample size and the point estimate are given as follows:

n = 929, \pi = \frac{515}{929} = 0.5544

The margin of error is given by:

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

M = 1.96\sqrt{\frac{0.5544(0.4456)}{929}}

M = 0.0320.

The interval is the point estimate plus/minus the margin of error, hence:

  • Lower bound: 0.5544 - 0.0320 = 0.5224.
  • Upper bound: 0.5544 + 0.0320 = 0.5864.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
1 year ago
explica, con un ejemplo, por lo menos cinco cualidades positivas de ti mismo (de tu carácter, mentales, en el terreno de las rel
larisa86 [58]

Answer:

Un cualidad en mi caracter es la templanza. Me cuido mucho de lo que vaya a comer. La segunda cualidad positiva mental es que lo que me propongo logro. En el terreno de las relaciones tengo dos. Por ejemplo con mis padres soy bueno hijo y con mi amiga siempre dispuesto de ayudar. En mi grupo de escuela me conocen como una persona amable. Finalmente, en la iglesia yo soy el que ayuda a los ancianos.

Explanation:

One quality of my character is temperance. I take good care of what I am going to eat. The second positive mental quality is whatever I set to accomplish, I will accomplish. In the personal relationships arena, I have two. For example, I am a good son with my parents and my friend I help her in whatever she may need. Within my school, people know me as amicable. Finally, in my church, I help the elderly.

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Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a CLEP exam is:
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Ad←→ is tangent to circle b at point c. what is the measure of ∠bca? 40º 50º 90º 180º circle b with radius b c. line tangent to
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