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andreyandreev [35.5K]
3 years ago
5

How do I solve -24x+6y=18;-8+2y=6 by using the system of elimination?

Mathematics
1 answer:
jeyben [28]3 years ago
7 0

\left\{\begin{array}{ccc}-24x+6y=18\\-8x+2y=6&\text{multiply both sides by (-3)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-24x+6y=18\\24x-6y=-18\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad0=0\\\\Answer:\ \boxed{\text{The system is dependent }}\\\\\left\{\begin{array}{ccc}x\in\mathbb{R}\\y=4x+3\end{array}\right

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So,i have the answer to this question,but i have no clue how to work it out,ik im not that smart but anyways i need helppo
mestny [16]

Answer:

1290 =  \frac{h}{10}  + \frac{h}{5} \\ 12900 = h + 2h \\ 3h = 12900 \\ h = 4300

7 0
3 years ago
Please help me :)<br><br><br> ty ty
WARRIOR [948]

Answer:

The slope is <u>steeper</u> and the line is shifted <u>flatter</u>.

Step-by-step explanation:

I have provided a graph to help illustrate the relationship between these two lines, (The red line is line A which is y = 2x + 4, and the blue line is line B which is y = 4x + 9).

As you can see, the slope does determine the steepness of the lines. This means that line A's slope is going up 2 units and over to the right 1 unit, whereas line B's slope is going up 4 units and to the right 1.

Therefore, if line A is to transform into line B, then its slope will be steeper.

Hope this helps you :)

Also, P.S. I don't know if there are supposed to be more options, so I apologize if flatter does not belong in the second box.

6 0
2 years ago
How do you solve this equation? <br>2x+8-22= -2
Schach [20]

Answer:

x=6

Step-by-step explanation:

First you have to subtract 8 from 22 and you get -14. Then you rewrite the equation, 2x-14=-2.

Since your subtracting 14 you would add 14 to both sides, so -14+14 and -2+14. -2+14 will turn out to be 12 and then you divide 2 from both sides, so 2x-2 and 12-2.

Your answer will be x=6

4 0
3 years ago
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Find the length of the longer side of rectangle ABCD in the graph.
labwork [276]
9 units is the answer
8 0
4 years ago
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Given f(x) = 4x + 2, find f-1(3).
Alexxandr [17]

Answer:

  1/4

Step-by-step explanation:

The inverse function tells you the input value that corresponds to the given output value of the function.

<h3>Application</h3>

You want f^-1(3), which is the value of x such that f(x) = 3.

  f(x) = 3 = 4x +2

  1 = 4x . . . . . . subtract 2

  1/4 = x . . . . . divide by 4

The inverse function of 3 is 1/4:

  \boxed{f^{-1}(3)=\dfrac{1}{4}}

4 0
2 years ago
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