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3 years ago

Y❤Ʊ Ѡ❤ᑎDƐŔFƱĿ ṖƐŔS❤ᑎ Y❤Ʊ!!!!!!!

Mathematics

1 answer:

Amanda [17]3 years ago

3 0

$4x = 8y - 4 > > 8x = 16y - 8 \\ 16y - 8 + 4y = 32 > > 20y = 40 \\ y = 2 > > x = 3$
$9 + 4 - 6 = 7$

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Answer:

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Step-by-step explanation:

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2 years ago

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r-ruslan [8.4K]

Answer:

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2 years ago

Evaluate: 2|x-4|+6 for x=2

Lina20 [59]

<h3>Answer:</h3>

$10$

<h3>Step-by-step explanation:</h3>

$2|x -4| +6 \text{ for } x = 2 \\ 2|2 -4| +6 \\ 2|-2| +6 \\ 2(2) +6 \\ 4 +6 \\ 10$

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3 years ago

What are the roots of the quadratic equation 2x2+7x+4=0? Select all that apply.

skad [1K]

Answer:

option A and B

$x=\frac{-7+\sqrt{17}} {4}$

and

$x=\frac{-7-\sqrt{17}} {4}$

Step-by-step explanation:

we have

$2x^2+7x+4=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

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

in this problem we have

$2x^2+7x+4=0$

$a=2\\b=7\\c=4$

substitute in the formula

$x=\frac{-7\pm\sqrt{7^{2}-4(2)(4)}} {2(2)}$

$x=\frac{-7\pm\sqrt{17}} {4}$

$x=\frac{-7+\sqrt{17}} {4}$

and

$x=\frac{-7-\sqrt{17}} {4}$

7 0

3 years ago

Frank's toy car is 19 centimeters long. Max's

jeka94

Answer:

Pertaining to the yielded interrogate, the retort is 6.30.

Step-by-step explanation:

As disseminated, the terms may equate to the proximate as identified:

-If an inch is equivalent to the numeral equivalence of 2.54, hence 5 inches (in) is in the accordance with the equivalence to 12.7 centimeters (cm).

Alas, the terms may equate as the following:

19 cm - 12.7 cm = x

Thus, as to resolute and evaluate the retort, with respect to your interrogate, is 6.30.

*Hope this helps.

8 0

3 years ago

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