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AlekseyPX
3 years ago
13

Please help!!!!!!!!!

Mathematics
1 answer:
Karolina [17]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

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Which of the following graphs is described by the function below ?
const2013 [10]

Answer:

The point of interception of the graph and x axis are -2.366 and -0.634.

The only graph that satisfy this conditions is Graph A

Step-by-step explanation:

Given the equation;

y = 2x^2 + 6x + 3\\

at y = 0

2x^2 + 6x + 3=0\\

the roots of the quadratic equation (at y =0) can be calculated using the quadratic formula;

x = \frac{-b\pm \sqrt{b^2 -4ac}}{2a}

Using the quadratic equation to solve for the roots;

x = \frac{-6\pm \sqrt{6^2 -4*2*3}}{2*2}\\x = \frac{-6\pm \sqrt{36 - 24}}{4}\\x = \frac{-6\pm \sqrt{12}}{4}\\so, we have \\x = -2.366\\or\\x = -0.634\\

Therefore, the point of interception of the graph and x axis are -2.366 and -0.634.

The only graph that satisfy this conditions is Graph A

4 0
4 years ago
What’s the value of y?
GuDViN [60]

Answer:

Step-by-step explanation:

2y=11-3

2y=8

Y=8/2

Y=4

7 0
3 years ago
A function follows the rule y = -75 - 5x. When the function's output is 25, the equation is 25 = -75 - 5x.
brilliants [131]

Answer:

x = 20

Step-by-step explanation:

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7 0
4 years ago
What is this simplified as a fraction
anyanavicka [17]

Step-by-step explanation:

35/48

this cannot be simplified any further

6 0
3 years ago
What is the answer to this <br> (X-1)²-(x-1)
balu736 [363]

Answer:

x²-2x+1-x+1=x²-3x+2

3 0
3 years ago
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