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oksian1 [2.3K]
3 years ago
12

Bella is making button barrettes. She allows each of her friends to reach into her bag of buttons and randomly select a color. T

hen she replaces it with the same color button and shakes the bag before letting another friend pick a color. Bella’s bag of buttons contains the colors below. Which model shows the probability of randomly selecting each color button from her bag?

Mathematics
2 answers:
MAXImum [283]3 years ago
7 0

Answer:

The answer is the third option :)

Step-by-step explanation:


bija089 [108]3 years ago
6 0
Pink 30/240

green 70/240

orange 100/240

blue 50/240
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Answer:

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Step-by-step explanation:

We have the function:

y=a(x-2)(x-1)

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Notice that our function is a quadratic in factored form.

Remember that the minimum/maximum value always occurs at the vertex point.

And remember that the x-coordinate of the vertex is the axis of symmetry.

Since a quadratic is always symmetrical on both sides of its axis of symmetry, a quadratic’s axis of symmetry is the average of the two roots/zeros of the quadratic.

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Our factors are <em>(x-2) </em>and <em>(x-1)</em>.

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Alternative Method:

Of course, we can also expand to confirm our answer. So:

y=a(x^2-2x-x+2)\\y=a(x^2-3x+2)\\y=ax^2-3ax+2a

The x-coordinate of the vertex is still going to be the place where the minimum/maximum is going to occur.

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x=-\frac{b}{2a}

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x=-\frac{-3a}{2a}=\frac{3}{2}=1.5

Confirming our answer.

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