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Oxana [17]
3 years ago
12

Please help I am really struggling:(

Mathematics
2 answers:
Nastasia [14]3 years ago
7 0
The equation would be 4(-22)-5
MakcuM [25]3 years ago
6 0

Answer:

The expression is (4*-22) - 5, the value of the expression is -93

Step-by-step explanation:

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How many terms are in the arithmetic sequence 9, 2, −5, . . . , −187?
Fantom [35]
9, 2, -5... so is going down by 7 each time, meaning the "common difference" is -7.

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
a_1=9\\
d=-7\\
a_n=-187
\end{cases}
\\\\\\
-187=9+(n-1)(-7)\implies -187=9-7n+7
\\\\\\
7n=9+7+187\implies 7n=203\implies n=\cfrac{203}{7}\implies \boxed{n=29}
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3 years ago
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4 0
2 years ago
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bearhunter [10]

Answer:

One Solution

Step-by-step explanation:

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Which of the following relations is a function
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Step-by-step explanation:

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