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3241004551 [841]
3 years ago
6

How would you graph this????Plz help

Mathematics
2 answers:
mylen [45]3 years ago
4 0
\bf 2x-5=3\implies 2x=3+5\implies x=\cfrac{8}{2}\implies x=4

now.. to graph that

let us make a quick table
\bf \begin{array}{lrlll}
x&y\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
4&-\infty \\
4&-1,000,000,000\\
4&-1,000,000\\
4&-1,000\\
4&-100\\
4&-10\\
4&-1\\
4&0\\
4&1\\
4&10\\
4&100\\
4&1,000\\
4&1,000,000\\
4&1,000,000,000\\
4&+\infty 
\end{array}

so.. you can either plot those points there on the table,
or just bear in mind x = 4, no matter what "y" is,
namely, x = 4 is just a vertical line at x = 4 :)
bixtya [17]3 years ago
3 0
2X=8
X=4

So do do this you plot the point four on the x axis and then draw a vertical line through that point
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Many track runners believe that they have a better chance of winning if they start in the inside lane that is closest to the fie
3241004551 [841]

Answer:

d) 6.750

<em>The chi - square value = 6.750</em>

Step-by-step explanation:

Given data

Starting Position              1           2            3           4            5              6  

Number of Wins (O)       33        44            32         36         45           50

<u><em>Step(i) :</em></u>-

mean = \frac{33+44+32+36+45+50}{6} = \frac{240}{6} =40

Expected frequency = 40

Number of Wins (O)      :     33        44            32         36         45           50

Expected frequency(E)   :   40         40           40         40          40          40

(O - E )                              :    -7          4              -8           -4           5            10

(O-E)²                               :     49         16           64          16          25          100

\frac{(O-E)^2}{E}                              :      1.225    0.4       1.6         0.4         0.625     2.5  

<u><em>Step(ii):-</em></u>

<u><em>The χ² test</em></u>

<em>      χ²   =    ∑   </em>\frac{(O-E)^2}{E}<em></em>

<em>   χ²  =  1.225 + 0.4 + 1.6 + 0.4 +0.625 +2.5 = 6.75</em>

<em>The chi - square value = 6.750</em>

<u><em>Final answer</em></u><em>:-</em>

<em>The chi - square value = 6.750</em>

<u><em>                  </em></u>

<u><em></em></u>

6 0
2 years ago
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