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3 years ago

5.

Mathematics

1 answer:

belka [17]3 years ago

6 0

Answer:

12 minutes

Step-by-step explanation:

6x3=18

5x1=5

18+5=23

35-23=12

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Which statement about y= 3x^2 + 11x + 6 is true?

Eva8 [605]

The answer is b I’m pretty sure

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2 years ago

The average weight of the entire batch of the boxes of cereal filled today was 20.5 ounces. A random sample of four boxes was se

zhenek [66]

Answer:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s= 0.286$

And then the estimator for the standard error is given by:

$SE= \frac{0.286}{\sqrt{4}}= 0.143$

Step-by-step explanation:

For this case we have the following dataset given:

20.05, 20.56, 20.72, and 20.43

We can assume that the distribution for the sample mean is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard error for this case would be:

$SE= \frac{\sigma}{\sqrt{n}}$

And we can estimate the deviation with the sample deviation:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s= 0.286$

And then the estimator for the standard error is given by:

$SE= \frac{0.286}{\sqrt{4}}= 0.143$

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3 years ago

Determine the solution for the system of equations below.

NeX [460]

Answer:

(0,0)

Step-by-step explanation:

4x + 4x = 0

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3 years ago

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Naddik [55]

Answer:

n = 5.2.

Step-by-step explanation:

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We divide both sides of the equation by -4:

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3 years ago

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