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satela [25.4K]
3 years ago
7

There were 800 farmers' markets initially in the USA in 2012. In 2013, the number of farmers' markets was 1.25 times the initial

number of farmers' markets. Then, in 2014, the number of farmers' markets was 1.25 times the number of farmers' markets the previous year. If this pattern continues, which of the following graphs represents the number of farmers' markets in the USA over time?

Mathematics
2 answers:
zavuch27 [327]3 years ago
8 0
For this case we have a function of the form:
 y = A * (b) ^ x

 Where,
 A: it is the initial amount
 b: is the growth rate
 x: is the number of years
 Substituting values we have:
 y = 800 * (1.25) ^ x
 We have a growing exponential function because the value of b is greater than 1.
 Answer:
 
See attached image.

Archy [21]3 years ago
5 0

Answer:

The attached image:

Initial Number of markets was 800

As time go by, muiltply 1.5

The equation:

y=800(1.25)^x

First year= 1,000

Second year= 1,250

and so on... (using the equation and replace x with the Years after)

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The data sets show the years of the coins in two collections. Derek's collection: 1950, 1952, 1908, 1902, 1955, 1954, 1901, 1910
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absolute deviation from mean is:

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:arrange the given data to get the range and median

   1901   1902    1908   1910    1950  1952    1954   1955

The minimum value is: 1901

Maximum value is: 1955

Range is: Maximum value-minimum value

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1930

   the lower set of data=

  1901   1902    1908   1910

first quartile becomes

1902+1908)/2

Q1=1905

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1950  1952    1954   1955

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1952+1954)/2=1953

Q3-Q1=1953-1905=

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Paul's collection:

1929, 1935, 1928, 1930, 1925, 1932, 1933, 1920

Mean is given by:

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absolute deviation from mean is:

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|1930-1929|= 1

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Hence, we get:

MAD=0+6+1+1+4+3+4+9/8

28/8

3.5

arrange the data in ascending order we get:

1920   1925   1928   1929   1930   1932   1933   1935  

Minimum value= 1920

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Range=  15 (  1935-1920=15 )

The median is between 1929 and 1930

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Also, lower set of data is:

1920   1925   1928   1929  

the first quartile or upper quartile is

1925+1928/2

1926.5

and the upper set of data is:

1930   1932   1933   1935  

We have

1932+1933)/2

1932.5

IQR is calculated as:

Q3-Q1

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