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navik [9.2K]
3 years ago
15

Jenna used a probability simulator to roll a 12-sided number cube 100 times. Her results are shown in the table below: Number on

the Cube Number of Times Rolled 1 14 2 12 3 10 4 5 5 16 6 5 7 8 8 18 9 2 10 5 11 2 12 3 Using Jenna's simulation, what is the frequency of rolling a 1 on the number cube
Mathematics
1 answer:
GuDViN [60]3 years ago
4 0

Answer:

Answer would be 89/100

Step-by-step explanation:

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Answer:

- 2 < x < 2

Step-by-step explanation:

Given

- 3 < 2x + 1 < 5 ( subtract 1 from each interval )

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What are the solutions of this quadratic equation?X2 - 10x= -34A.r=-8, -2B.r= 5 + 3iC.r=-5 + 3iD.r=-5 + 159
ololo11 [35]

The given equation is-

x^2-10x=-34

First, we move the independent term to the other side.

x^2-10x+34=0

Now, we have to use the quadratic equation to find the solutions.-

x_{1,2}=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

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Replacing these values in the formula, we have.

\begin{gathered} x_{1,2}=\frac{-(-10)\pm\sqrt[]{(-10)^2-4(1)(34)}}{2(1)} \\ x_{1,2}=\frac{10\pm\sqrt[]{100-136}}{2}=\frac{10\pm\sqrt[]{-36}}{2} \end{gathered}

But, there's no square root of -36 because it's a negative. To solve this issue, we use complex numbers that way, we would have solutions.

x_{1,2}=\frac{10\pm\sqrt[]{36}i}{2}=\frac{10\pm6i}{2}=5\pm3i<h2>Therefore, the solutions are</h2>\begin{gathered} x_1=5+3i \\ x_2=5-3i \end{gathered}The right answer is B.
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1 year ago
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i am a mathematics teacher. if anything to ask please pm me
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3 years ago
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