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Effectus [21]
3 years ago
8

What is the equation of a line that passes through the points (1,6) and (2,1)?

Mathematics
1 answer:
algol133 years ago
3 0

Answer:

y = -5x+11

Step-by-step explanation:

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Think about it this way, what is 5x3??? 15 right. Ok then what is 5x30???? 150. So the store should sell each soccer ball for $5 each:)
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What is the zero of the following function, f(x) = –(2/7) x − 10? ​
Stels [109]

Answer:

Step-by-step explanation:

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7 0
3 years ago
At the beginning of each year for 14 years, Sherry Kardell invested $400 that earns 10% annually. What is the future value of Sh
Naddik [55]
Hmm if I'm not mistaken, is just an "ordinary" annuity, thus 

\bf \qquad \qquad \textit{Future Value of an ordinary annuity}
\\\\
A=pymnt\left[ \cfrac{\left( 1+\frac{r}{n} \right)^{nt}-1}{\frac{r}{n}} \right]
\\\\\\

\bf \begin{cases}
A=
\begin{array}{llll}
\textit{original amount}\\
\textit{already compounded}
\end{array} &
\begin{array}{llll}

\end{array}\\
pymnt=\textit{periodic payments}\to &400\\
r=rate\to 10\%\to \frac{10}{100}\to &0.1\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, so once}
\end{array}\to &1\\

t=years\to &14
\end{cases}
\\\\\\
A=400\left[ \cfrac{\left( 1+\frac{0.1}{1} \right)^{1\cdot 14}-1}{\frac{0.1}{1}} \right]

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We end up with 7xy(4x-7y^4)
3 0
3 years ago
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What is happening at this step in the equation solving process for 3x+7=5x <br> 7=2x
Leya [2.2K]
Your subtracting 3x from 5x: 5x-3x
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