2 years ago

which describes the number sentences? 6+0=6: Commutative Property of Addition or Identity Property of Addition

Mathematics

1 answer:

Eduardwww [97]2 years ago

8 0

The identity property of addition states that a + 0 = a

Your answer is identity property of addition.

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If the sum of the roots of the equation 3x² + kx + 1 = 0 is 7. then what the value of k

koban [17]

Answer:

The value of k is -21

Step-by-step explanation:

ax² + bx + c = 0

Sum of the roots = -b/a

3x² + kx + 1 = 0

= sum of the roots = -k/3

-k/3 = 7

Now, Multiply both side by (-3) we get,

(-3)-k/3 = 7(-3)

k = -21

Thus, The value of k is -21

<u>-TheUnknownScientist</u><u> 72</u>

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2 years ago

If u do this, i will love u plss!

Andreas93 [3]

Answer:

1/2

Step-by-step explanation:

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3 years ago

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photoshop1234 [79]

$\displaystyle\int_{-3}^3|x+2|\,\mathrm dx$

Recall the definition of absolute value:

$|x|=\begin{cases}x&\text{for }x\ge0\\-x&\text{for }x$

So we can split up the integration interval at $x=-2$ and apply this definition to rewrite the integral as

$\displaystyle\int_{-3}^{-2}(-(x+2))\,\mathrm dx+\int_{-2}^3(x+2)\,\mathrm dx$
$=\displaystyle-\int_{-3}^{-2}(x+2)\,\mathrm dx+\int_{-2}^3(x+2)\,\mathrm dx$
$=-\left(\dfrac12x^2+2x\right)\bigg|_{x=-3}^{x=-2}+\left(\dfrac12x^2+2x\right)\bigg|_{x=-2}^{x=3}$
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3 years ago

The probability of winning the state championship is 0.35. What is the probability of not winning the state championship?

Maru [420]

D. 0.65 since that equals 65% and 0.35 or 35% would equal 100

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3 years ago

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If arc SQ = 84° and ∠RPS = 26°, what is the measure of arc RS?

Ratling [72]

The arc RS would be 250 degrees if the RPS is the central angle and if the angle is on the circumference then the angle would be 224.

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3 years ago

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