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zzz [600]
3 years ago
10

A survey indicates that there are approximately 120 dairy farms in a given area. If there are exactly 400 farms, and exactly 20%

of them are dairy farms, what is the percent error? Fill in the table below.
Mathematics
2 answers:
kaheart [24]3 years ago
6 0

Answer:

a =  120

b =  80

c =  40

d =  0.5

e =  50%

Step-by-step explanation:

inna [77]3 years ago
5 0

Answer:

120 out of 400 does not equal 20%

it equals 30%

Step-by-step explanation:

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<em>Comment on the graph</em>

For the graph, we have rewritten the equation so it is of the form f(x)=0. The graphing program is able to highlight zero crossings, so this is a convenient form. When the equation is multiplied as described above, the resulting cubic has an extra zero-crossing at x=3 (blue curve). This is the extraneous solution.

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