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3 years ago

Is 7.14142842854 an irrational number?

Mathematics

2 answers:

LuckyWell [14K]3 years ago

5 0

Answer:

Step-by-step explanation:

qaws [65]3 years ago

4 0

Answer:

no is not irrational that number is very much rational

Step-by-step explanation:

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A total of 611 tickets were sold for the school play. They were either adult tickets or student tickets. There were 61 more stud

Sergio039 [100]

Answer:

Adult tickets=275

Step-by-step explanation:

form 2 equations from the given info.

x+y=611

y=x+61

x being the adults and y being the students tickets

then substitute the y equation into the first equation.

x+x+61=611

2x+61=611

2x=550

x=275

and you can check by putting 275 back into the original equations :)

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3 years ago

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Y_Kistochka [10]

Answer:

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Step-by-step explanation:

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UkoKoshka [18]

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Anni [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

For a sample size of 115 and a population parameter of 0.1,what is the standard deviation of the normal curve that can be used t

Helga [31]

Answer:

A) 0.028

Step-by-step explanation:

Given:

Sample size, n = 115

Population parameter, p = 0.1

The X-Bin(n=155, p=0.1)

Required:

Find the standard deviation of the normal curve that can be used to approximate the binomial probability histogram.

To find the standard deviation, use the formula below:

$\sigma = \sqrt{\frac{p(1-p)}{n}}$

Substitute figures in the equation:

$\sigma = \sqrt{\frac{0.1(1 - 0.1)}{115}}$

$\sigma = \sqrt{\frac{0.1 * 0.9}{115}}$

$\sigma = \sqrt{\frac{0.09}{115}}$

$\sigma = \sqrt{7.826*10^-^4}$

$\sigma = 0.028$

The Standard deviation of the normal curve that can be used to approximate the binomial probability histogram is 0.028

5 0

3 years ago