2 years ago

I need to know what is 8x^2-10x-12

Mathematics

2 answers:

aleksklad [387]2 years ago

4 0

Answer:

Use m athw ay for these types of equations

Step-by-step explanation:

DedPeter [7]2 years ago

3 0

2(4x + 3) * (x - 2)

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IRISSAK [1]

Answer:

−5/2 ± √33 /2

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3 years ago

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DochEvi [55]

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$20 haircut with 10% and 7% tax

Anika [276]

20 * .10 = 2 (2 = 10% of 20)

20 + 2 = 22

20 x .07 = 1.4 (1.4 = 7% of 20)

20 + 1.4 = 21.4

The price of a 20$ haircut with a 10% tax would be $22.

The price of a 20$ haircut with a 7% tax would be $21.40.

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2 years ago

A parabola intersects the xxx-axis at x=3x=3x, equals, 3 and x=9x=9x, equals, 9.

vekshin1

Answer:

$x^2-12x+27 =0$

Step-by-step explanation:

Given a Parabola that intersects the x-axis at x=3 and x=9.

I presume you want to determine the equation of the parabola.

You can use this form:

Given roots of a parabola, the equation of the parabola is derived using the formula:

$x^2-($Sum of Roots)x+Product of Roots =0\\Since roots are 3 and 9, the equation becomes:\\x^2-(3+9)x+(3X9) =0\\x^2-12x+27 =0$

The equation of the parabola is:

$x^2-12x+27 =0$

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2 years ago

Determine whether the quantitative variable is discrete or continuous. Number of lightning strikes in a city in one yearnumber o

charle [14.2K]

solution:

The variable is discrete because it is countable.

The number5 of lightning strikes in a city in one year is countable value.

So, it is discrete

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2 years ago