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Len [333]
3 years ago
13

What is the value of (5) 3

Mathematics
2 answers:
pentagon [3]3 years ago
5 0

\huge \mathtt \orange{Question}

<h3>What \: is \: the \: value \: of \:  {5}^{3}</h3>

\huge \mathtt \orange{Answer}

<h3>The \: value \: of \:  {5}^{3}  \: is \:  -</h3>

<h3>5 \times 5 \times 5</h3><h3>25 \times 5</h3><h3>125</h3>

<h3>\mathsf\blue{Hence \: the \: value \: of \:  {5}^{3 \: }  \: is \: 125}</h3>
saul85 [17]3 years ago
4 0

Answer: 15

Step-by-step explanation: we use distributive property to find the answer

we basically multiply 5 by 3, which is 15.

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Firdavs [7]

Answer:

554 executives should be surveyed.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

Standard deviation of 3 hours.

This means that \sigma = 3

The 95% level of confidence is to be used. How many executives should be surveyed?

n executives should be surveyed, and n is found with M = 0.25. So

M = z\frac{\sigma}{\sqrt{n}}

0.25 = 1.96\frac{3}{\sqrt{n}}

0.25\sqrt{n} = 1.96*3

\sqrt{n} = \frac{1.96*3}{0.25}

(\sqrt{n})^2 = (\frac{1.96*3}{0.25})^2

n = 553.2

Rounding up:

554 executives should be surveyed.

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3 years ago
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3 years ago
a group of 50 people were asked their gender and if they liked cats. the data from the survey are shown in the ben diagram. dete
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Step-by-step explanation:

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6 0
3 years ago
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