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Phantasy [73]
3 years ago
13

Find the general solution of the given differential equation. y'' + 2y' + 5y = 3 sin 2t

Mathematics
1 answer:
atroni [7]3 years ago
8 0
Consider, pls, this option.
Please, change the design according to local requirements.

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-45+(-30)-90 the answer of that mathematics sum
Klio2033 [76]
The answer of
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6 0
3 years ago
Read 2 more answers
There are big spenders among University of Alabama football season ticket holders. This data set Roll Tide!! shows the dollar am
Bas_tet [7]

Using the z-distribution, as we have a proportion, the 95% confidence interval is (0.2316, 0.3112).

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

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, 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.

We also consider that 130 out of the 479 season ticket holders spent $1000 or more at the previous two home football games, hence:

n = 479, \pi = \frac{130}{479} = 0.2714

Hence the bounds of the interval are found as follows:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2714 - 1.96\sqrt{\frac{0.2714(0.7286)}{479}} = 0.2316

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2714 + 1.96\sqrt{\frac{0.2714(0.7286)}{479}} = 0.3112

The 95% confidence interval is (0.2316, 0.3112).

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

7 0
2 years ago
Please help me !!! what’s the answer ?
diamong [38]

Answer:

negtive 1

Step-by-step explanation:

4 0
2 years ago
A python curls up to touch the tip of its own tail with its nose, forming the shape of a circle. The python is
Ann [662]

Answer: 1.3

Step-by-step explanation:

8 0
3 years ago
Diego has 3 times as many comic books as Han.
Sloan [31]

Answer:

Han has 9 books

Step-by-step explanation:

If diego has 27 comic books than that means that all you have to do is divide 27/3. then that equals to 9

5 0
3 years ago
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