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OverLord2011 [107]
2 years ago
15

PLEASE AM BEGGINNN YOUUUUU

Mathematics
1 answer:
Vikentia [17]2 years ago
3 0

Answer:

Step-by-step explanation:

<em>A)</em>

<em>A - the population after its decrease </em>

<em>x - the number of years in which there has been a decrease in population</em>

<em>Hence,</em>

<em></em>\displaystyle\\A=30000-475x\\A+475x=30000-475x+475x\\A+475x=30000\\A+475x-A=30000-A\\475x=30000-A

<em>Divide both parts of the equation by 475:</em>

<em></em>\displaystyle\\x=\frac{30000-A}{475}

<em>B)</em>

<em></em>\displaystyle\\x=\frac{30000-24300}{475} \\\\x=\frac{5700}{475}\\\\x=\frac{12*475}{475}  \\\\x=12\ years

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dalvyx [7]
Sadly is right.  You must have practiced this stuff in middle school
until it was coming out of your ears.  Fortunately, you have a chance
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'm' is the slope of the line on the graph.

The slope is

                (the change in 'y' between any two points on the line)
divided by
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You can choose any two points on the line, and the slope is always the same.

To make it easy, look at the two points on this graph where the line crosses
the x-axis and the y-axis.

Going between these two points ...
-- the line goes up, from  y=0  to  y=4.  The change in 'y' is  4 .
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           'm' = the slope  =  (4)/(2)  =  2 .

The  "y-intercept"  is the place where the line crosses the y-axis.
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The equation of EVERY straight line on ANY graph is:

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So the equation of THIS line on THIS graph is

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<h3>Definition of standard deviation</h3>

Standard deviation can be defined as a statistic tool that measures the dispersion of a dataset in relation to its mean and is calculated as the square root of the available variance of the set.

It is calculated as the square root of the given variance.

Thus, the MOST accurate definition of standard deviation is the mean absolute deviation of the sum of the squared deviation from the average.

Learn more about standard deviation here:

brainly.com/question/475676

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Step-by-step explanation:

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