2 years ago

This table shows a proportional relationship between x and y

Mathematics

1 answer:

sattari [20]2 years ago

4 0

Y=12x hope you have a good day

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5-d

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Which are the solutions of the quadratic equation? x2 = 9x + 6

r-ruslan [8.4K]

we have

$x^{2}=9x+ 6$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2}-9x=6$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2}-9x+4.5^{2}=6+4.5^{2}$

$x^{2}-9x+20.25=6+20.25$

$x^{2}-9x+20.25=26.25$

Rewrite as perfect squares

$(x-4.5)^{2}=26.25$

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therefore

the answer is

$x1=4.5+\sqrt{26.25}=9.623$

$x2=4.5-\sqrt{26.25}=-0.623$

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2 years ago

Read 2 more answers