3 years ago

the price of bread went from 1.50 per loaf to 2.50 per loaf in four years. find the rate of change of the price of bread

Mathematics

1 answer:

Talja [164]3 years ago

3 0

Answer:

I think the answer is 1 I really hope this helps

Step-by-step explanation:

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What are the mean absolute deviation and population standard deviation of this data set? Round to the nearest tenth if necessary

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Answer:

For a data set of N elements:

{x₁, x₂, ..., xₙ}

The mean is:

$M = \frac{x_1 + x_2 + ... + x_n}{N}$

The mean absolute deviation is:

$MAD = \frac{|x_1 - M| + ... + |x_n - M|}{N}$

And the population standard deviation is:

$PSD = \frac{\sqrt{|x_1 - M|^2 + ... + |x_n - M|^2} }{\sqrt{N}}$

In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

The mean of this set is:

$M = \frac{2 + 4 + 6 + 9 + 14}{5} = 7$

The mean absolute deviation is:

$MAD = \frac{|2 - 7| + |4 - 7| + |6 - 7|+ |9 - 7| + |14 - 7| }{5} = 3.6$

And the population standard deviation is:

$PSD = \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2$

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2 years ago

PolarNik [594]

Answer:

A. y = -x -2

Step-by-step explanation:

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Phantasy [73]

Answer:

Alia has 11 jelly beans.

Step-by-step explanation:

4^2= 163^3= 2727-16=11

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Michael says their homes are at opposite elevations because they are in opposite directions. Is he correct? Explain.

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Simplify the expression 3.5(1.2x+0.8)-0.5(4.6-1.2x)

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Step-by-step explanation:

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