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2 years ago

REALLY need help solving this

Mathematics

2 answers:

Solnce55 [7]2 years ago

7 0

Answer:

2744m^3

Step-by-step explanation:

14*14*14=2744m^3

Alex73 [517]2 years ago

6 0

V = 2744 m³
Volume of cube= length³= l³= 14³= 2744 m³

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Answer:

The confidence interval for the true mean calorie content is

$215$

Step-by-step explanation:

In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:

$\bar{x}-t*s/\sqrt{n}< \mu$

We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.

Then we can calculate the limits of the CI:

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4 years ago

A population has the following characteristics.(a) A total of 25% of the population survives the first year. Of that 25%, 75% su

zaharov [31]

Answer:

After 1st year, the age distribution will be

$x_1 = \left[\begin{array}{ccc}1584\\36\\108\end{array}\right]$

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$x_2 = \left[\begin{array}{ccc}5256\\396\\27\end{array}\right]$

Step-by-step explanation:

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A total of 25% of the population survives the first year. Of that 25%, 75% survives the second year.

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After 2nd year, the age distribution will be

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$x_2 = \left[\begin{array}{ccc}3&5&3\\0.25&0&0\\0&0.75&0\end{array}\right] \times \left[\begin{array}{ccc}1584\\36\\108\end{array}\right]$

$x_2 = \left[\begin{array}{ccc}5256\\396\\27\end{array}\right]$

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ira [324]

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