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DaniilM [7]
3 years ago
7

Can somebody please answer this. I will give brainliest answer.

Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

121.21 people per square mile

Step-by-step explanation:

area = 1/2(12 + 21)(14) = 231 mi²

28,000/231 = 121.21 people per square mile

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Function 1:

For the given table

\begin{array}{cc}x&f(x)\\-2&-2\\-1&1\\0&4\\1&7\end{array}

you can plot the graph of the function (see first attached diagram). This function is linear and has equation f(x)=3x+4.

Function 2:

For the given function f(x)=-2x+3 you can create a table

\begin{array}{cc}x&f(x)\\-2&7\\-1&5\\0&3\\1&1\end{array}

and plot the graph (see second attached diagram).

Function 3:

For the given graph of the function, you can find the function:

\dfrac{x-0}{6-0}=\dfrac{y-(-3)}{0-(-3)},\\ \\\dfrac{x}{6}=\dfrac{y+3}{3},\\ \\2(y+3)=x,\\ \\y=\dfrac{1}{2}x-3.

Thus, the equation of the function 3 is f(x)=\dfrac{1}{2}x-3.

The table will take a look

\begin{array}{cc}x&f(x)\\-2&-4\\-1&-3.5\\0&-3\\1&-2.5\end{array}



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4 years ago
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