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3 years ago

What is the solution to this linear system?

Mathematics

1 answer:

seropon [69]3 years ago

5 0

The answer is (-1,7)

I got this answer because to solve a system, you find the point on the graph where both lines intersect. And that point in this graph is (-1,7). Hope this helps!:)))))

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An equilateral triangle has a side length of 16 cm work out the area of the triangle.

bonufazy [111]

Answer:

128cm²

Step-by-step explanation:

A=½×b×h

A=½×16cm×16cm

A=½×256cm²

A=128cm²

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3 years ago

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What is the area of a rectangle with length 112 foot and width 34 foot?

Nastasia [14]

Answer:

3808ft²

Step-by-step explanation:

Formula: A=L×W

A= area

L= length

W= width

A= 112 × 34= 3808ft²

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Step-by-step explanation:

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3 years ago

2. What is the next term of the arithmetic sequence 6, 10, 14, 18, ...?

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

In this sequence, the next number is found by adding 4.

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3 years ago

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Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

3 years ago