Please help I need the right answer and I will mark you as brainlist if done right

Mathematics

1 answer:

Mademuasel [1]3 years ago

4 0

(-3,1) is the answer.

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3 years ago

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The measures of the angles of a convex polygon form an arithmetic sequence. The least measurement in the sequence is 128º. The g

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$\bf \qquad \qquad \textit{sum of a finite arithmetic sequence}\\\\
S_n=\cfrac{n}{2}(a_1+a_n)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\ a_n=n^{th}~value\\
----------\\
\stackrel{least}{a_1}=128\\\\
\stackrel{greatest}{a_n}=172
\end{cases}$

$\bf S_n=\cfrac{n}{2}(128~+~172)\implies S_n=\cfrac{n}{2}(300)\implies S_n=150n
\\\\\\
\textit{but we also know that sum of all interior angles is }180(n-2)
\\\\\\
\stackrel{\textit{sum of the angles}}{S_n}=\stackrel{\textit{sum of the angles}}{180(n-2)}=150n
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3 years ago

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miskamm [114]

Answer: x=−2,y=3

Step-by-step explanation:

Hope this helps you! Have a good day!

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3 years ago

PLS HELP I WILL DO ANYTHING PLS

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