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2 years ago

If you want to tune a guitar string to a higher frequency, you should

Mathematics

1 answer:

liraira [26]2 years ago

6 0

A, more tension has a higher frequency

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Estimate 17.9 divided by 9

babunello [35]

Hi

To estimate, round the decimal to the nearest whole number, which is 18.
18/9 = 2

The answer is 2

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2 years ago

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ss7ja [257]

From the little marks on the sides, we can see that YZ is the midpoint segment.
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12.2 is the answer.

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2 years ago

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Gemiola [76]

Answer:

you have to make x-3 and x-7 equal to zero...

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3 years ago

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3 years ago

Determine the next step for solving the quadratic equation by completing the square.

Studentka2010 [4]

Answer:

The solutions are $x=\frac{1+\sqrt{7}}{2}$ and $x=\frac{1-\sqrt{7}}{2}$

Step-by-step explanation:

we have

$0=-2x^{2}+2x+3$

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

$-3=-2x^{2}+2x$

Factor the leading coefficient

$-3=-2(x^{2}-x)$

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

$-3-0.5=-2(x^{2}-x+0.5^{2})$

$-3.5=-2(x^{2}-x+0.5^{2})$

Rewrite as perfect squares

$-3.5=-2(x-0.5)^{2}$

$7/4=(x-0.5)^{2}$

square root both sides

$x-0.5=(+/-)\sqrt{\frac{7}{4}}$

$x-\frac{1}{2}=(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1}{2}(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1+\sqrt{7}}{2}$

$x=\frac{1-\sqrt{7}}{2}$

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3 years ago