Pleaseeee help!!!! I will mark you as brainlinest for correct answer!!!!!!!!

Mathematics

1 answer:

mr_godi [17]4 years ago

3 0

To find f(1), look along the x-axis and look at where x is 1 or (1,0). Then, when you look on the graph, imagine a vertical line has been drawn through the x value of 1 (or the graph x=1). When you do, notice that this line passes through one point, (1,-4). The y-value of this coordinate would be your answer since the x value is 1 when f(1), the answer is -4.

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What is the area of a regular polygon with 100 sides and a perimeter of 100 units?

PolarNik [594]

Now, if the regular polygon has 100 sides, and the perimeter is 100 units, that simply means that each side is 1 unit, foot, meter, else.

so, we know each side is 1 unit long, and we know there are 100 sides,

$\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{4}ns^2cot\left( \frac{180}{n} \right)\quad 
\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of a side}\\
\frac{180}{n}=central~angle\\
\qquad~~ in~degrees\\
----------\\
n=100\\
s=1
\end{cases}
\\\\\\
A=\cfrac{1}{4}\cdot 100\cdot 1^2\cdot cot\left( \frac{180}{100} \right)\implies A=25cot\left(\frac{9}{5}^o \right)
\\\\\\
A\approx 795.51289884$

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4 years ago

HELP QUICK IM STRUGGLING!:(

lukranit [14]

The answer is B hopefully this helped

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3 years ago

Read 2 more answers

What is the x-intercept of the line with this equation −2x 12y=18 enter your answer in the box. (?, 0)

alexandr402 [8]

I did this test too! The answer was (-9, 0)

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