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fgiga [73]
2 years ago
14

3x+2y=11 7x-y=3 systems of linear equations 

Mathematics
1 answer:
mariarad [96]2 years ago
4 0
\begin{cases}3x+2y=11 \\ 7x-y=3 \end{cases}\\ \\\begin{cases}3x+2*(7x-3)=11 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}3x+14x-6=11 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}17x =11+6 \\ y=7x- 3 \end{cases}

\begin{cases}17x =17 \ \ /:17 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}x=1\\ y=7*1- 3 \end{cases}\\ \\\begin{cases}x=1 \\ y=4\end{cases}
 

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842 rounded to the nearest ten
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Answer:

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Step-by-step explanation:

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Functions can be represented using equations, graphs and tables.

The function is given as:

a(l) = \frac 12 l^2

When l = 1, we have:

a(1) = \frac 12 \times 1^2

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When l = 2, we have:

a(2) = \frac 12 \times 2^2

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When l = 3, we have:

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When l = 4, we have:

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Represent the above results as a table, we have:

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3          4.5

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Read more about tables and functions at:

brainly.com/question/13136492

8 0
3 years ago
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Step-by-step explanation:

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Total random sample = 20

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Answer:

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Step-by-step explanation:

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The area of the sector to the right is ...

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so the total area of the blue shaded region is ...

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3 years ago
Please help Math answers
Sunny_sXe [5.5K]

Answer:

on example 1, both are right triangles.

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