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mestny [16]
2 years ago
13

2x - 5y = 6 and -2x + 7y = 14 *Using elimination*​

Mathematics
2 answers:
maks197457 [2]2 years ago
3 0
2x-5y+ (-2x) + 7y= 6+14
2y = 20
y= 10
2x-5(10)=6
2x= 56
x= 28
Llana [10]2 years ago
3 0
Here is the ans.hope this helps!

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Which property is shown by -6+0=-6?
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When Kirk and Elisa formed their general partnership, Kirk contributed 90 percent of the capital, and Elisa contributed 10 perce
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Her share is $3500

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Read 2 more answers
What is the range of the function f(x) = 3x2 + 6x - 8?
V125BC [204]

Answer:

  {y | y ≥ -11 }

Step-by-step explanation:

To answer a question like this, it is often helpful to graph the function or to rewrite it to vertex form.

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  f(x) = 3(x^2 +2x) -8 . . . . factor the leading coefficient from x terms

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  y ≥ -11

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* Vertex form is ...

  f(x) = a(x -h)^2 +k

where "a" is the vertical scale factor and (h, k) is the vertex. When "a" is positive, the parabola opens upward; when it is negative, the parabola opens downward.

The square is completed by adding the square of half the x-coefficient inside parentheses, and subtracting the equivalent amount outside parentheses. Here, we had 2x inside parentheses, so we added (2/2)^2 = 1 inside and -3(1) outside, because "a" was 3.

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Brainly provides tools for properly rendering math symbols. 2-11 is not the same as ≥-11.

7 0
3 years ago
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