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3 years ago

Explain how you would use a number line to find the absolute value of –12.

2 answers:

7 0

This is kind of hard to explain, but I'm going to try. Feel free to comment questions if what I'm going to say doesn't make sense.

Absolute Value
∞ # of spaces away from zero
∞ how far away a number is from zero

1). Draw a number line.
2). Label it from -12 to 0.
3). Count on the number line from -12 to 0 and see how many units to the right you have to go to reach zero. The answer is 12, so that is the absolute value.
|-12| = 12

just olya [345]3 years ago

6 0

The absolute value is 12. I don't know how you would use the number line to your advantage but that's because that's not how they taught me in school.

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Plz help I'll give brainliest

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Answer: The answer is 144 I believe

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2 years ago

Determine whether the polynomial below can be factored into perfect squares. If so, factor the polynomial. Otherwise, select tha

kkurt [141]

Answer:

A. $=(9x-12)^2$

Step-by-step explanation:

We need to determine whether the polynomial $81x^2-216x+144$ can be factored into perfect squares. If so, factor the polynomial. Otherwise, select that it cannot be factored into a perfect square.

$81x^2-216x+144$

$=9(9x^2-24x+12)$

$=9(9x^2-12x-12x+12)$

$=9(3x(3x-4)-4(3x-4))$

$=9(3x-4)(3x-4)$

$=9(3x-4)^2$

$=3^2(3x-4)^2$

$=(3(3x-4))^2$

$=(9x-12)^2$

Hence choice A. $=(9x-12)^2$ is correct.

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3 years ago

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A box of 15 markers cost is $2.40 how much will a box of 40 marker’s cost

butalik [34]

Answer:

$6.40

Step-by-step explanation:

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2 years ago

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1/2r -3= 3 (4-3/2r) solve for r

s2008m [1.1K]

1/2r -3= 3 (4-3/2r) is to be solved for r.

I'll begin by making the assumptions that by 1/2r you actually meant (1/2)r and that by 3/2r you actually meant (3/2)r. When in doubt, please use parentheses to make your meaning clear.

Thus, 1/2r -3= 3 (4-3/2r) becomes (1/2)r -3= 3 (4-(3/2)r ) .

Simplify this by multiplying all 3 terms by 2. Doing this will eliminate the fractions:

r -6 = 3 (4*2-(3)r ) or r - 6 = 24 - 9r

Now expand the right side, using the distributive property of

r - 3 = 24 - 9r

Regrouping so as to combine like terms:

10r = 30

Solving for r: r = 30/10 = 3

The value of r that satisfies this equation is 3

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3 years ago

During a sale, a store offered a 15% discount on a TV that originally sold for $420. After the sale, the discounted price of the

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Answer:

Step-by-step explanation:

Your answer

303.45

Mark it as Brainlist. Follow me for more answer.

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